Home / 87,635.75-120,937.34-47,349.53

Finding the Fourth Proportional to 87,635.75, 120,937.34 and 47,349.53

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Solution

The fourth proportional to 87,635.75, 120,937.34 and 47,349.53 is: 65,342.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,635.75 : 120,937.34 = 47,349.53 : x
  2. Step 2: Convert to fraction form
    87,635.75/120,937.34 = 47,349.53/x
  3. Step 3: Cross multiply
    87,635.75x = 120,937.34 × 47,349.53
  4. Step 4: Simplify right side
    87,635.75x = 5,726,325,367.02
  5. Step 5: Solve for x
    x = 5,726,325,367.02/87,635.75
  6. Step 6: Final answer
    x = 65,342.34

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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.