Home / 80,917.61-111,670.08-45,107.83

Finding the Fourth Proportional to 80,917.61, 111,670.08 and 45,107.83

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Solution

The fourth proportional to 80,917.61, 111,670.08 and 45,107.83 is: 62,250.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,917.61 : 111,670.08 = 45,107.83 : x
  2. Step 2: Convert to fraction form
    80,917.61/111,670.08 = 45,107.83/x
  3. Step 3: Cross multiply
    80,917.61x = 111,670.08 × 45,107.83
  4. Step 4: Simplify right side
    80,917.61x = 5,037,194,426.38
  5. Step 5: Solve for x
    x = 5,037,194,426.38/80,917.61
  6. Step 6: Final answer
    x = 62,250.90

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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.