Home / 89,817.28-123,956.20-51,582.16

Finding the Fourth Proportional to 89,817.28, 123,956.20 and 51,582.16

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Solution

The fourth proportional to 89,817.28, 123,956.20 and 51,582.16 is: 71,188.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,817.28 : 123,956.20 = 51,582.16 : x
  2. Step 2: Convert to fraction form
    89,817.28/123,956.20 = 51,582.16/x
  3. Step 3: Cross multiply
    89,817.28x = 123,956.20 × 51,582.16
  4. Step 4: Simplify right side
    89,817.28x = 6,393,928,541.39
  5. Step 5: Solve for x
    x = 6,393,928,541.39/89,817.28
  6. Step 6: Final answer
    x = 71,188.18

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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.