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Finding the Fourth Proportional to 77,329.97, 106,710.30 and 45,492.71

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Solution

The fourth proportional to 77,329.97, 106,710.30 and 45,492.71 is: 62,776.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,329.97 : 106,710.30 = 45,492.71 : x
  2. Step 2: Convert to fraction form
    77,329.97/106,710.30 = 45,492.71/x
  3. Step 3: Cross multiply
    77,329.97x = 106,710.30 × 45,492.71
  4. Step 4: Simplify right side
    77,329.97x = 4,854,540,998.69
  5. Step 5: Solve for x
    x = 4,854,540,998.69/77,329.97
  6. Step 6: Final answer
    x = 62,776.97

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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.