Home / 54,153.74-81,244.48-20,864.86

Finding the Fourth Proportional to 54,153.74, 81,244.48 and 20,864.86

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Solution

The fourth proportional to 54,153.74, 81,244.48 and 20,864.86 is: 31,302.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,153.74 : 81,244.48 = 20,864.86 : x
  2. Step 2: Convert to fraction form
    54,153.74/81,244.48 = 20,864.86/x
  3. Step 3: Cross multiply
    54,153.74x = 81,244.48 × 20,864.86
  4. Step 4: Simplify right side
    54,153.74x = 1,695,154,700.97
  5. Step 5: Solve for x
    x = 1,695,154,700.97/54,153.74
  6. Step 6: Final answer
    x = 31,302.63

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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.