Finding the Fourth Proportional to 93,686.20, 129,283.68 and 53,412.92
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Solution
The fourth proportional to 93,686.20, 129,283.68 and 53,412.92 is: 73,707.96
Step by Step Solution
- Step 1: Write the proportion equation
93,686.20 : 129,283.68 = 53,412.92 : x - Step 2: Convert to fraction form
93,686.20/129,283.68 = 53,412.92/x - Step 3: Cross multiply
93,686.20x = 129,283.68 × 53,412.92 - Step 4: Simplify right side
93,686.20x = 6,905,418,857.15 - Step 5: Solve for x
x = 6,905,418,857.15/93,686.20 - Step 6: Final answer
x = 73,707.96
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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.