Home / 63,381.20-87,438.60-38,216.72

Finding the Fourth Proportional to 63,381.20, 87,438.60 and 38,216.72

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Solution

The fourth proportional to 63,381.20, 87,438.60 and 38,216.72 is: 52,722.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,381.20 : 87,438.60 = 38,216.72 : x
  2. Step 2: Convert to fraction form
    63,381.20/87,438.60 = 38,216.72/x
  3. Step 3: Cross multiply
    63,381.20x = 87,438.60 × 38,216.72
  4. Step 4: Simplify right side
    63,381.20x = 3,341,616,493.39
  5. Step 5: Solve for x
    x = 3,341,616,493.39/63,381.20
  6. Step 6: Final answer
    x = 52,722.52

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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.