Home / 87,938.28-121,355.25-47,652.03

Finding the Fourth Proportional to 87,938.28, 121,355.25 and 47,652.03

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Solution

The fourth proportional to 87,938.28, 121,355.25 and 47,652.03 is: 65,760.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,938.28 : 121,355.25 = 47,652.03 : x
  2. Step 2: Convert to fraction form
    87,938.28/121,355.25 = 47,652.03/x
  3. Step 3: Cross multiply
    87,938.28x = 121,355.25 × 47,652.03
  4. Step 4: Simplify right side
    87,938.28x = 5,782,823,834.96
  5. Step 5: Solve for x
    x = 5,782,823,834.96/87,938.28
  6. Step 6: Final answer
    x = 65,760.03

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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.