Home / 63,720.15-87,900.67-38,214.26

Finding the Fourth Proportional to 63,720.15, 87,900.67 and 38,214.26

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Solution

The fourth proportional to 63,720.15, 87,900.67 and 38,214.26 is: 52,715.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,720.15 : 87,900.67 = 38,214.26 : x
  2. Step 2: Convert to fraction form
    63,720.15/87,900.67 = 38,214.26/x
  3. Step 3: Cross multiply
    63,720.15x = 87,900.67 × 38,214.26
  4. Step 4: Simplify right side
    63,720.15x = 3,359,059,057.55
  5. Step 5: Solve for x
    x = 3,359,059,057.55/63,720.15
  6. Step 6: Final answer
    x = 52,715.81

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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.