Home / 59,940.20-89,910.30-42,429.80

Finding the Fourth Proportional to 59,940.20, 89,910.30 and 42,429.80

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Solution

The fourth proportional to 59,940.20, 89,910.30 and 42,429.80 is: 63,644.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,940.20 : 89,910.30 = 42,429.80 : x
  2. Step 2: Convert to fraction form
    59,940.20/89,910.30 = 42,429.80/x
  3. Step 3: Cross multiply
    59,940.20x = 89,910.30 × 42,429.80
  4. Step 4: Simplify right side
    59,940.20x = 3,814,876,046.94
  5. Step 5: Solve for x
    x = 3,814,876,046.94/59,940.20
  6. Step 6: Final answer
    x = 63,644.70

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1.5x scale

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.