Home / 42,979.28-64,480.10-16,325.78

Finding the Fourth Proportional to 42,979.28, 64,480.10 and 16,325.78

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Solution

The fourth proportional to 42,979.28, 64,480.10 and 16,325.78 is: 24,492.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,979.28 : 64,480.10 = 16,325.78 : x
  2. Step 2: Convert to fraction form
    42,979.28/64,480.10 = 16,325.78/x
  3. Step 3: Cross multiply
    42,979.28x = 64,480.10 × 16,325.78
  4. Step 4: Simplify right side
    42,979.28x = 1,052,687,522.95
  5. Step 5: Solve for x
    x = 1,052,687,522.95/42,979.28
  6. Step 6: Final answer
    x = 24,492.91

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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.