Home / 48,029.10-72,000.45-30,489.90

Finding the Fourth Proportional to 48,029.10, 72,000.45 and 30,489.90

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Solution

The fourth proportional to 48,029.10, 72,000.45 and 30,489.90 is: 45,707.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,029.10 : 72,000.45 = 30,489.90 : x
  2. Step 2: Convert to fraction form
    48,029.10/72,000.45 = 30,489.90/x
  3. Step 3: Cross multiply
    48,029.10x = 72,000.45 × 30,489.90
  4. Step 4: Simplify right side
    48,029.10x = 2,195,286,520.46
  5. Step 5: Solve for x
    x = 2,195,286,520.46/48,029.10
  6. Step 6: Final answer
    x = 45,707.43

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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.