Home / 54,478.98-75,174.12-31,812.66

Finding the Fourth Proportional to 54,478.98, 75,174.12 and 31,812.66

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Solution

The fourth proportional to 54,478.98, 75,174.12 and 31,812.66 is: 43,897.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,478.98 : 75,174.12 = 31,812.66 : x
  2. Step 2: Convert to fraction form
    54,478.98/75,174.12 = 31,812.66/x
  3. Step 3: Cross multiply
    54,478.98x = 75,174.12 × 31,812.66
  4. Step 4: Simplify right side
    54,478.98x = 2,391,488,720.36
  5. Step 5: Solve for x
    x = 2,391,488,720.36/54,478.98
  6. Step 6: Final answer
    x = 43,897.46

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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.