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Finding the Fourth Proportional to 77,287.13, 106,656.24 and 43,753.13

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Solution

The fourth proportional to 77,287.13, 106,656.24 and 43,753.13 is: 60,379.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,287.13 : 106,656.24 = 43,753.13 : x
  2. Step 2: Convert to fraction form
    77,287.13/106,656.24 = 43,753.13/x
  3. Step 3: Cross multiply
    77,287.13x = 106,656.24 × 43,753.13
  4. Step 4: Simplify right side
    77,287.13x = 4,666,543,800.75
  5. Step 5: Solve for x
    x = 4,666,543,800.75/77,287.13
  6. Step 6: Final answer
    x = 60,379.32

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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.