Home / 48,520.32-72,780.07-13,459.97

Finding the Fourth Proportional to 48,520.32, 72,780.07 and 13,459.97

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Solution

The fourth proportional to 48,520.32, 72,780.07 and 13,459.97 is: 20,189.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,520.32 : 72,780.07 = 13,459.97 : x
  2. Step 2: Convert to fraction form
    48,520.32/72,780.07 = 13,459.97/x
  3. Step 3: Cross multiply
    48,520.32x = 72,780.07 × 13,459.97
  4. Step 4: Simplify right side
    48,520.32x = 979,617,732.34
  5. Step 5: Solve for x
    x = 979,617,732.34/48,520.32
  6. Step 6: Final answer
    x = 20,189.85

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1.5x scale

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.