Home / 54,153.60-81,244.24-20,864.76

Finding the Fourth Proportional to 54,153.60, 81,244.24 and 20,864.76

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Solution

The fourth proportional to 54,153.60, 81,244.24 and 20,864.76 is: 31,302.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,153.60 : 81,244.24 = 20,864.76 : x
  2. Step 2: Convert to fraction form
    54,153.60/81,244.24 = 20,864.76/x
  3. Step 3: Cross multiply
    54,153.60x = 81,244.24 × 20,864.76
  4. Step 4: Simplify right side
    54,153.60x = 1,695,141,568.98
  5. Step 5: Solve for x
    x = 1,695,141,568.98/54,153.60
  6. Step 6: Final answer
    x = 31,302.47

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1.5x scale

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.