Home / 56,432.64-84,631.92-16,979.28

Finding the Fourth Proportional to 56,432.64, 84,631.92 and 16,979.28

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Solution

The fourth proportional to 56,432.64, 84,631.92 and 16,979.28 is: 25,463.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,432.64 : 84,631.92 = 16,979.28 : x
  2. Step 2: Convert to fraction form
    56,432.64/84,631.92 = 16,979.28/x
  3. Step 3: Cross multiply
    56,432.64x = 84,631.92 × 16,979.28
  4. Step 4: Simplify right side
    56,432.64x = 1,436,989,066.62
  5. Step 5: Solve for x
    x = 1,436,989,066.62/56,432.64
  6. Step 6: Final answer
    x = 25,463.79

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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.