Home / 48,138.85-72,185.49-28,154.13

Finding the Fourth Proportional to 48,138.85, 72,185.49 and 28,154.13

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Solution

The fourth proportional to 48,138.85, 72,185.49 and 28,154.13 is: 42,217.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,138.85 : 72,185.49 = 28,154.13 : x
  2. Step 2: Convert to fraction form
    48,138.85/72,185.49 = 28,154.13/x
  3. Step 3: Cross multiply
    48,138.85x = 72,185.49 × 28,154.13
  4. Step 4: Simplify right side
    48,138.85x = 2,032,319,167.88
  5. Step 5: Solve for x
    x = 2,032,319,167.88/48,138.85
  6. Step 6: Final answer
    x = 42,217.86

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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.