Home / 48,197.20-72,288.72-28,215.92

Finding the Fourth Proportional to 48,197.20, 72,288.72 and 28,215.92

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Solution

The fourth proportional to 48,197.20, 72,288.72 and 28,215.92 is: 42,319.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,197.20 : 72,288.72 = 28,215.92 : x
  2. Step 2: Convert to fraction form
    48,197.20/72,288.72 = 28,215.92/x
  3. Step 3: Cross multiply
    48,197.20x = 72,288.72 × 28,215.92
  4. Step 4: Simplify right side
    48,197.20x = 2,039,692,740.42
  5. Step 5: Solve for x
    x = 2,039,692,740.42/48,197.20
  6. Step 6: Final answer
    x = 42,319.74

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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.