Home / 59,905.60-89,815.20-39,140.80

Finding the Fourth Proportional to 59,905.60, 89,815.20 and 39,140.80

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Solution

The fourth proportional to 59,905.60, 89,815.20 and 39,140.80 is: 58,682.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,905.60 : 89,815.20 = 39,140.80 : x
  2. Step 2: Convert to fraction form
    59,905.60/89,815.20 = 39,140.80/x
  3. Step 3: Cross multiply
    59,905.60x = 89,815.20 × 39,140.80
  4. Step 4: Simplify right side
    59,905.60x = 3,515,438,780.16
  5. Step 5: Solve for x
    x = 3,515,438,780.16/59,905.60
  6. Step 6: Final answer
    x = 58,682.97

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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.