Finding the Fourth Proportional to 86,113.28, 118,821.12 and 52,590.08
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Solution
The fourth proportional to 86,113.28, 118,821.12 and 52,590.08 is: 72,565.02
Step by Step Solution
- Step 1: Write the proportion equation
86,113.28 : 118,821.12 = 52,590.08 : x - Step 2: Convert to fraction form
86,113.28/118,821.12 = 52,590.08/x - Step 3: Cross multiply
86,113.28x = 118,821.12 × 52,590.08 - Step 4: Simplify right side
86,113.28x = 6,248,812,206.49 - Step 5: Solve for x
x = 6,248,812,206.49/86,113.28 - Step 6: Final answer
x = 72,565.02
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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.