Finding the Fourth Proportional to 93,219.30, 128,592.09 and 55,486.26
Calculator
Solution
The fourth proportional to 93,219.30, 128,592.09 and 55,486.26 is: 76,540.95
Step by Step Solution
- Step 1: Write the proportion equation
93,219.30 : 128,592.09 = 55,486.26 : x - Step 2: Convert to fraction form
93,219.30/128,592.09 = 55,486.26/x - Step 3: Cross multiply
93,219.30x = 128,592.09 × 55,486.26 - Step 4: Simplify right side
93,219.30x = 7,135,094,139.68 - Step 5: Solve for x
x = 7,135,094,139.68/93,219.30 - Step 6: Final answer
x = 76,540.95
Related Problems
Find fourth proportional to 46,609.65, 64,296.05 and 27,743.13
Half scale
Find fourth proportional to 186,438.60, 257,184.18 and 110,972.52
Double scale
Find fourth proportional to 93,220.30, 128,593.47 and 55,487.26
Similar ratio
Find fourth proportional to 139,828.95, 192,888.14 and 83,229.39
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.