Finding the Fourth Proportional to 93,220.47, 128,643.59 and 50,779.00
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Solution
The fourth proportional to 93,220.47, 128,643.59 and 50,779.00 is: 70,074.66
Step by Step Solution
- Step 1: Write the proportion equation
93,220.47 : 128,643.59 = 50,779.00 : x - Step 2: Convert to fraction form
93,220.47/128,643.59 = 50,779.00/x - Step 3: Cross multiply
93,220.47x = 128,643.59 × 50,779.00 - Step 4: Simplify right side
93,220.47x = 6,532,393,144.36 - Step 5: Solve for x
x = 6,532,393,144.36/93,220.47 - Step 6: Final answer
x = 70,074.66
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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.