Home / 63,380.20-87,437.22-38,215.72

Finding the Fourth Proportional to 63,380.20, 87,437.22 and 38,215.72

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Solution

The fourth proportional to 63,380.20, 87,437.22 and 38,215.72 is: 52,721.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,380.20 : 87,437.22 = 38,215.72 : x
  2. Step 2: Convert to fraction form
    63,380.20/87,437.22 = 38,215.72/x
  3. Step 3: Cross multiply
    63,380.20x = 87,437.22 × 38,215.72
  4. Step 4: Simplify right side
    63,380.20x = 3,341,476,317.10
  5. Step 5: Solve for x
    x = 3,341,476,317.10/63,380.20
  6. Step 6: Final answer
    x = 52,721.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.