Home / 48,542.40-72,727.20-39,729.60

Finding the Fourth Proportional to 48,542.40, 72,727.20 and 39,729.60

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Solution

The fourth proportional to 48,542.40, 72,727.20 and 39,729.60 is: 59,523.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,542.40 : 72,727.20 = 39,729.60 : x
  2. Step 2: Convert to fraction form
    48,542.40/72,727.20 = 39,729.60/x
  3. Step 3: Cross multiply
    48,542.40x = 72,727.20 × 39,729.60
  4. Step 4: Simplify right side
    48,542.40x = 2,889,422,565.12
  5. Step 5: Solve for x
    x = 2,889,422,565.12/48,542.40
  6. Step 6: Final answer
    x = 59,523.69

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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.