Home / 66,618.26-99,877.98-40,316.75

Finding the Fourth Proportional to 66,618.26, 99,877.98 and 40,316.75

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Solution

The fourth proportional to 66,618.26, 99,877.98 and 40,316.75 is: 60,445.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,618.26 : 99,877.98 = 40,316.75 : x
  2. Step 2: Convert to fraction form
    66,618.26/99,877.98 = 40,316.75/x
  3. Step 3: Cross multiply
    66,618.26x = 99,877.98 × 40,316.75
  4. Step 4: Simplify right side
    66,618.26x = 4,026,755,550.17
  5. Step 5: Solve for x
    x = 4,026,755,550.17/66,618.26
  6. Step 6: Final answer
    x = 60,445.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.