Home / 49,641.12-74,432.40-20,059.92

Finding the Fourth Proportional to 49,641.12, 74,432.40 and 20,059.92

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Solution

The fourth proportional to 49,641.12, 74,432.40 and 20,059.92 is: 30,078.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,641.12 : 74,432.40 = 20,059.92 : x
  2. Step 2: Convert to fraction form
    49,641.12/74,432.40 = 20,059.92/x
  3. Step 3: Cross multiply
    49,641.12x = 74,432.40 × 20,059.92
  4. Step 4: Simplify right side
    49,641.12x = 1,493,107,989.41
  5. Step 5: Solve for x
    x = 1,493,107,989.41/49,641.12
  6. Step 6: Final answer
    x = 30,078.05

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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.