Home / 81,267.20-112,152.32-45,457.12

Finding the Fourth Proportional to 81,267.20, 112,152.32 and 45,457.12

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Solution

The fourth proportional to 81,267.20, 112,152.32 and 45,457.12 is: 62,732.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,267.20 : 112,152.32 = 45,457.12 : x
  2. Step 2: Convert to fraction form
    81,267.20/112,152.32 = 45,457.12/x
  3. Step 3: Cross multiply
    81,267.20x = 112,152.32 × 45,457.12
  4. Step 4: Simplify right side
    81,267.20x = 5,098,121,468.52
  5. Step 5: Solve for x
    x = 5,098,121,468.52/81,267.20
  6. Step 6: Final answer
    x = 62,732.83

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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.