Home / 89,243.28-123,159-51,002.16

Finding the Fourth Proportional to 89,243.28, 123,159 and 51,002.16

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Solution

The fourth proportional to 89,243.28, 123,159 and 51,002.16 is: 70,384.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,243.28 : 123,159 = 51,002.16 : x
  2. Step 2: Convert to fraction form
    89,243.28/123,159 = 51,002.16/x
  3. Step 3: Cross multiply
    89,243.28x = 123,159 × 51,002.16
  4. Step 4: Simplify right side
    89,243.28x = 6,281,375,023.44
  5. Step 5: Solve for x
    x = 6,281,375,023.44/89,243.28
  6. Step 6: Final answer
    x = 70,384.85

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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.