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Finding the Fourth Proportional to 77,329.75, 106,713.24 and 45,500.71

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Solution

The fourth proportional to 77,329.75, 106,713.24 and 45,500.71 is: 62,789.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,329.75 : 106,713.24 = 45,500.71 : x
  2. Step 2: Convert to fraction form
    77,329.75/106,713.24 = 45,500.71/x
  3. Step 3: Cross multiply
    77,329.75x = 106,713.24 × 45,500.71
  4. Step 4: Simplify right side
    77,329.75x = 4,855,528,186.40
  5. Step 5: Solve for x
    x = 4,855,528,186.40/77,329.75
  6. Step 6: Final answer
    x = 62,789.91

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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.