Home / 87,718.55-121,051.51-47,432.22

Finding the Fourth Proportional to 87,718.55, 121,051.51 and 47,432.22

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Solution

The fourth proportional to 87,718.55, 121,051.51 and 47,432.22 is: 65,456.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,718.55 : 121,051.51 = 47,432.22 : x
  2. Step 2: Convert to fraction form
    87,718.55/121,051.51 = 47,432.22/x
  3. Step 3: Cross multiply
    87,718.55x = 121,051.51 × 47,432.22
  4. Step 4: Simplify right side
    87,718.55x = 5,741,741,011.23
  5. Step 5: Solve for x
    x = 5,741,741,011.23/87,718.55
  6. Step 6: Final answer
    x = 65,456.41

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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.