Home / 87,704.40-121,032.10-47,418.15

Finding the Fourth Proportional to 87,704.40, 121,032.10 and 47,418.15

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Solution

The fourth proportional to 87,704.40, 121,032.10 and 47,418.15 is: 65,437.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,704.40 : 121,032.10 = 47,418.15 : x
  2. Step 2: Convert to fraction form
    87,704.40/121,032.10 = 47,418.15/x
  3. Step 3: Cross multiply
    87,704.40x = 121,032.10 × 47,418.15
  4. Step 4: Simplify right side
    87,704.40x = 5,739,118,272.62
  5. Step 5: Solve for x
    x = 5,739,118,272.62/87,704.40
  6. Step 6: Final answer
    x = 65,437.06

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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.