Home / 87,851.59-121,235.03-47,565.34

Finding the Fourth Proportional to 87,851.59, 121,235.03 and 47,565.34

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Solution

The fourth proportional to 87,851.59, 121,235.03 and 47,565.34 is: 65,640.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,851.59 : 121,235.03 = 47,565.34 : x
  2. Step 2: Convert to fraction form
    87,851.59/121,235.03 = 47,565.34/x
  3. Step 3: Cross multiply
    87,851.59x = 121,235.03 × 47,565.34
  4. Step 4: Simplify right side
    87,851.59x = 5,766,585,421.86
  5. Step 5: Solve for x
    x = 5,766,585,421.86/87,851.59
  6. Step 6: Final answer
    x = 65,640.08

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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.