Home / 81,550.40-112,539.12-45,251.48

Finding the Fourth Proportional to 81,550.40, 112,539.12 and 45,251.48

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Solution

The fourth proportional to 81,550.40, 112,539.12 and 45,251.48 is: 62,446.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,550.40 : 112,539.12 = 45,251.48 : x
  2. Step 2: Convert to fraction form
    81,550.40/112,539.12 = 45,251.48/x
  3. Step 3: Cross multiply
    81,550.40x = 112,539.12 × 45,251.48
  4. Step 4: Simplify right side
    81,550.40x = 5,092,561,737.90
  5. Step 5: Solve for x
    x = 5,092,561,737.90/81,550.40
  6. Step 6: Final answer
    x = 62,446.80

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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.