Home / 89,432.28-123,422.58-51,203.88

Finding the Fourth Proportional to 89,432.28, 123,422.58 and 51,203.88

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Solution

The fourth proportional to 89,432.28, 123,422.58 and 51,203.88 is: 70,664.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,432.28 : 123,422.58 = 51,203.88 : x
  2. Step 2: Convert to fraction form
    89,432.28/123,422.58 = 51,203.88/x
  3. Step 3: Cross multiply
    89,432.28x = 123,422.58 × 51,203.88
  4. Step 4: Simplify right side
    89,432.28x = 6,319,714,975.61
  5. Step 5: Solve for x
    x = 6,319,714,975.61/89,432.28
  6. Step 6: Final answer
    x = 70,664.81

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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.