Home / 63,720.68-87,958.92-42,492.20

Finding the Fourth Proportional to 63,720.68, 87,958.92 and 42,492.20

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Solution

The fourth proportional to 63,720.68, 87,958.92 and 42,492.20 is: 58,655.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,720.68 : 87,958.92 = 42,492.20 : x
  2. Step 2: Convert to fraction form
    63,720.68/87,958.92 = 42,492.20/x
  3. Step 3: Cross multiply
    63,720.68x = 87,958.92 × 42,492.20
  4. Step 4: Simplify right side
    63,720.68x = 3,737,568,020.42
  5. Step 5: Solve for x
    x = 3,737,568,020.42/63,720.68
  6. Step 6: Final answer
    x = 58,655.49

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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.