Home / 82,434.79-123,579.24-40,291.30

Finding the Fourth Proportional to 82,434.79, 123,579.24 and 40,291.30

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Solution

The fourth proportional to 82,434.79, 123,579.24 and 40,291.30 is: 60,401.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,434.79 : 123,579.24 = 40,291.30 : x
  2. Step 2: Convert to fraction form
    82,434.79/123,579.24 = 40,291.30/x
  3. Step 3: Cross multiply
    82,434.79x = 123,579.24 × 40,291.30
  4. Step 4: Simplify right side
    82,434.79x = 4,979,168,232.61
  5. Step 5: Solve for x
    x = 4,979,168,232.61/82,434.79
  6. Step 6: Final answer
    x = 60,401.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.