Finding the Fourth Proportional to 93,921.68, 129,615.24 and 51,480.20
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Solution
The fourth proportional to 93,921.68, 129,615.24 and 51,480.20 is: 71,044.50
Step by Step Solution
- Step 1: Write the proportion equation
93,921.68 : 129,615.24 = 51,480.20 : x - Step 2: Convert to fraction form
93,921.68/129,615.24 = 51,480.20/x - Step 3: Cross multiply
93,921.68x = 129,615.24 × 51,480.20 - Step 4: Simplify right side
93,921.68x = 6,672,618,478.25 - Step 5: Solve for x
x = 6,672,618,478.25/93,921.68 - Step 6: Final answer
x = 71,044.50
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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.