Home / 48,638.29-72,906.85-20,534.89

Finding the Fourth Proportional to 48,638.29, 72,906.85 and 20,534.89

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Solution

The fourth proportional to 48,638.29, 72,906.85 and 20,534.89 is: 30,780.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,638.29 : 72,906.85 = 20,534.89 : x
  2. Step 2: Convert to fraction form
    48,638.29/72,906.85 = 20,534.89/x
  3. Step 3: Cross multiply
    48,638.29x = 72,906.85 × 20,534.89
  4. Step 4: Simplify right side
    48,638.29x = 1,497,134,145.00
  5. Step 5: Solve for x
    x = 1,497,134,145.00/48,638.29
  6. Step 6: Final answer
    x = 30,780.98

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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.