Home / 48,423.40-72,780.90-42,008.20

Finding the Fourth Proportional to 48,423.40, 72,780.90 and 42,008.20

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Solution

The fourth proportional to 48,423.40, 72,780.90 and 42,008.20 is: 63,138.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,423.40 : 72,780.90 = 42,008.20 : x
  2. Step 2: Convert to fraction form
    48,423.40/72,780.90 = 42,008.20/x
  3. Step 3: Cross multiply
    48,423.40x = 72,780.90 × 42,008.20
  4. Step 4: Simplify right side
    48,423.40x = 3,057,394,603.38
  5. Step 5: Solve for x
    x = 3,057,394,603.38/48,423.40
  6. Step 6: Final answer
    x = 63,138.78

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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.