Home / 54,579.16-81,760.38-42,055.75

Finding the Fourth Proportional to 54,579.16, 81,760.38 and 42,055.75

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Solution

The fourth proportional to 54,579.16, 81,760.38 and 42,055.75 is: 63,000.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,579.16 : 81,760.38 = 42,055.75 : x
  2. Step 2: Convert to fraction form
    54,579.16/81,760.38 = 42,055.75/x
  3. Step 3: Cross multiply
    54,579.16x = 81,760.38 × 42,055.75
  4. Step 4: Simplify right side
    54,579.16x = 3,438,494,101.19
  5. Step 5: Solve for x
    x = 3,438,494,101.19/54,579.16
  6. Step 6: Final answer
    x = 63,000.13

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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.