Home / 63,379.20-87,435.84-38,214.72

Finding the Fourth Proportional to 63,379.20, 87,435.84 and 38,214.72

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Solution

The fourth proportional to 63,379.20, 87,435.84 and 38,214.72 is: 52,719.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,379.20 : 87,435.84 = 38,214.72 : x
  2. Step 2: Convert to fraction form
    63,379.20/87,435.84 = 38,214.72/x
  3. Step 3: Cross multiply
    63,379.20x = 87,435.84 × 38,214.72
  4. Step 4: Simplify right side
    63,379.20x = 3,341,336,143.56
  5. Step 5: Solve for x
    x = 3,341,336,143.56/63,379.20
  6. Step 6: Final answer
    x = 52,719.76

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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.