Home / 54,470.16-81,663.72-28,158.12

Finding the Fourth Proportional to 54,470.16, 81,663.72 and 28,158.12

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Solution

The fourth proportional to 54,470.16, 81,663.72 and 28,158.12 is: 42,215.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,470.16 : 81,663.72 = 28,158.12 : x
  2. Step 2: Convert to fraction form
    54,470.16/81,663.72 = 28,158.12/x
  3. Step 3: Cross multiply
    54,470.16x = 81,663.72 × 28,158.12
  4. Step 4: Simplify right side
    54,470.16x = 2,299,496,827.41
  5. Step 5: Solve for x
    x = 2,299,496,827.41/54,470.16
  6. Step 6: Final answer
    x = 42,215.72

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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.