Home / 39,890.76-59,770.52-31,623.90

Finding the Fourth Proportional to 39,890.76, 59,770.52 and 31,623.90

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Solution

The fourth proportional to 39,890.76, 59,770.52 and 31,623.90 is: 47,383.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,890.76 : 59,770.52 = 31,623.90 : x
  2. Step 2: Convert to fraction form
    39,890.76/59,770.52 = 31,623.90/x
  3. Step 3: Cross multiply
    39,890.76x = 59,770.52 × 31,623.90
  4. Step 4: Simplify right side
    39,890.76x = 1,890,176,947.43
  5. Step 5: Solve for x
    x = 1,890,176,947.43/39,890.76
  6. Step 6: Final answer
    x = 47,383.83

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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.