Home / 71,861.24-99,171.57-40,030.13

Finding the Fourth Proportional to 71,861.24, 99,171.57 and 40,030.13

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Solution

The fourth proportional to 71,861.24, 99,171.57 and 40,030.13 is: 55,243.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,861.24 : 99,171.57 = 40,030.13 : x
  2. Step 2: Convert to fraction form
    71,861.24/99,171.57 = 40,030.13/x
  3. Step 3: Cross multiply
    71,861.24x = 99,171.57 × 40,030.13
  4. Step 4: Simplify right side
    71,861.24x = 3,969,850,839.40
  5. Step 5: Solve for x
    x = 3,969,850,839.40/71,861.24
  6. Step 6: Final answer
    x = 55,243.28

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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.