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Finding the Fourth Proportional to 81,267.88, 112,160.06 and 45,459.88

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Solution

The fourth proportional to 81,267.88, 112,160.06 and 45,459.88 is: 62,740.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,267.88 : 112,160.06 = 45,459.88 : x
  2. Step 2: Convert to fraction form
    81,267.88/112,160.06 = 45,459.88/x
  3. Step 3: Cross multiply
    81,267.88x = 112,160.06 × 45,459.88
  4. Step 4: Simplify right side
    81,267.88x = 5,098,782,868.39
  5. Step 5: Solve for x
    x = 5,098,782,868.39/81,267.88
  6. Step 6: Final answer
    x = 62,740.44

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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.