Home / 87,903.23-121,306.75-47,616.86

Finding the Fourth Proportional to 87,903.23, 121,306.75 and 47,616.86

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Solution

The fourth proportional to 87,903.23, 121,306.75 and 47,616.86 is: 65,711.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,903.23 : 121,306.75 = 47,616.86 : x
  2. Step 2: Convert to fraction form
    87,903.23/121,306.75 = 47,616.86/x
  3. Step 3: Cross multiply
    87,903.23x = 121,306.75 × 47,616.86
  4. Step 4: Simplify right side
    87,903.23x = 5,776,246,716.03
  5. Step 5: Solve for x
    x = 5,776,246,716.03/87,903.23
  6. Step 6: Final answer
    x = 65,711.43

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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.