Home / 77,553.90-106,997.12-50,712.12

Finding the Fourth Proportional to 77,553.90, 106,997.12 and 50,712.12

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Solution

The fourth proportional to 77,553.90, 106,997.12 and 50,712.12 is: 69,964.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,553.90 : 106,997.12 = 50,712.12 : x
  2. Step 2: Convert to fraction form
    77,553.90/106,997.12 = 50,712.12/x
  3. Step 3: Cross multiply
    77,553.90x = 106,997.12 × 50,712.12
  4. Step 4: Simplify right side
    77,553.90x = 5,426,050,535.53
  5. Step 5: Solve for x
    x = 5,426,050,535.53/77,553.90
  6. Step 6: Final answer
    x = 69,964.90

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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.