Finding the Fourth Proportional to 88,239.16, 121,757.10 and 52,430.68
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Solution
The fourth proportional to 88,239.16, 121,757.10 and 52,430.68 is: 72,346.65
Step by Step Solution
- Step 1: Write the proportion equation
88,239.16 : 121,757.10 = 52,430.68 : x - Step 2: Convert to fraction form
88,239.16/121,757.10 = 52,430.68/x - Step 3: Cross multiply
88,239.16x = 121,757.10 × 52,430.68 - Step 4: Simplify right side
88,239.16x = 6,383,807,547.83 - Step 5: Solve for x
x = 6,383,807,547.83/88,239.16 - Step 6: Final answer
x = 72,346.65
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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.