Home / 87,851.43-121,234.05-47,564.46

Finding the Fourth Proportional to 87,851.43, 121,234.05 and 47,564.46

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Solution

The fourth proportional to 87,851.43, 121,234.05 and 47,564.46 is: 65,638.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,851.43 : 121,234.05 = 47,564.46 : x
  2. Step 2: Convert to fraction form
    87,851.43/121,234.05 = 47,564.46/x
  3. Step 3: Cross multiply
    87,851.43x = 121,234.05 × 47,564.46
  4. Step 4: Simplify right side
    87,851.43x = 5,766,432,121.86
  5. Step 5: Solve for x
    x = 5,766,432,121.86/87,851.43
  6. Step 6: Final answer
    x = 65,638.45

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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.