Home / 54,387.20-75,130.80-41,971.52

Finding the Fourth Proportional to 54,387.20, 75,130.80 and 41,971.52

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Solution

The fourth proportional to 54,387.20, 75,130.80 and 41,971.52 is: 57,979.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,387.20 : 75,130.80 = 41,971.52 : x
  2. Step 2: Convert to fraction form
    54,387.20/75,130.80 = 41,971.52/x
  3. Step 3: Cross multiply
    54,387.20x = 75,130.80 × 41,971.52
  4. Step 4: Simplify right side
    54,387.20x = 3,153,353,874.82
  5. Step 5: Solve for x
    x = 3,153,353,874.82/54,387.20
  6. Step 6: Final answer
    x = 57,979.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.