Home / 84,660.29-126,997.35-42,518.70

Finding the Fourth Proportional to 84,660.29, 126,997.35 and 42,518.70

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Solution

The fourth proportional to 84,660.29, 126,997.35 and 42,518.70 is: 63,781.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,660.29 : 126,997.35 = 42,518.70 : x
  2. Step 2: Convert to fraction form
    84,660.29/126,997.35 = 42,518.70/x
  3. Step 3: Cross multiply
    84,660.29x = 126,997.35 × 42,518.70
  4. Step 4: Simplify right side
    84,660.29x = 5,399,762,225.45
  5. Step 5: Solve for x
    x = 5,399,762,225.45/84,660.29
  6. Step 6: Final answer
    x = 63,781.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.