Home / 54,930.02-75,806.43-31,058.78

Finding the Fourth Proportional to 54,930.02, 75,806.43 and 31,058.78

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Solution

The fourth proportional to 54,930.02, 75,806.43 and 31,058.78 is: 42,862.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,930.02 : 75,806.43 = 31,058.78 : x
  2. Step 2: Convert to fraction form
    54,930.02/75,806.43 = 31,058.78/x
  3. Step 3: Cross multiply
    54,930.02x = 75,806.43 × 31,058.78
  4. Step 4: Simplify right side
    54,930.02x = 2,354,455,231.96
  5. Step 5: Solve for x
    x = 2,354,455,231.96/54,930.02
  6. Step 6: Final answer
    x = 42,862.81

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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.