Finding the Fourth Proportional to 87,932.13, 121,346.18 and 47,646.98
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Solution
The fourth proportional to 87,932.13, 121,346.18 and 47,646.98 is: 65,752.75
Step by Step Solution
- Step 1: Write the proportion equation
87,932.13 : 121,346.18 = 47,646.98 : x - Step 2: Convert to fraction form
87,932.13/121,346.18 = 47,646.98/x - Step 3: Cross multiply
87,932.13x = 121,346.18 × 47,646.98 - Step 4: Simplify right side
87,932.13x = 5,781,779,348.86 - Step 5: Solve for x
x = 5,781,779,348.86/87,932.13 - Step 6: Final answer
x = 65,752.75
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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.