Home / 87,938.66-121,355.76-47,652.41

Finding the Fourth Proportional to 87,938.66, 121,355.76 and 47,652.41

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Solution

The fourth proportional to 87,938.66, 121,355.76 and 47,652.41 is: 65,760.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,938.66 : 121,355.76 = 47,652.41 : x
  2. Step 2: Convert to fraction form
    87,938.66/121,355.76 = 47,652.41/x
  3. Step 3: Cross multiply
    87,938.66x = 121,355.76 × 47,652.41
  4. Step 4: Simplify right side
    87,938.66x = 5,782,893,824.60
  5. Step 5: Solve for x
    x = 5,782,893,824.60/87,938.66
  6. Step 6: Final answer
    x = 65,760.54

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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.