Home / 81,158.86-111,997.08-45,349.17

Finding the Fourth Proportional to 81,158.86, 111,997.08 and 45,349.17

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Solution

The fourth proportional to 81,158.86, 111,997.08 and 45,349.17 is: 62,580.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,158.86 : 111,997.08 = 45,349.17 : x
  2. Step 2: Convert to fraction form
    81,158.86/111,997.08 = 45,349.17/x
  3. Step 3: Cross multiply
    81,158.86x = 111,997.08 × 45,349.17
  4. Step 4: Simplify right side
    81,158.86x = 5,078,974,200.43
  5. Step 5: Solve for x
    x = 5,078,974,200.43/81,158.86
  6. Step 6: Final answer
    x = 62,580.65

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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.