Home / 81,937.52-113,073.66-46,139.09

Finding the Fourth Proportional to 81,937.52, 113,073.66 and 46,139.09

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Solution

The fourth proportional to 81,937.52, 113,073.66 and 46,139.09 is: 63,671.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,937.52 : 113,073.66 = 46,139.09 : x
  2. Step 2: Convert to fraction form
    81,937.52/113,073.66 = 46,139.09/x
  3. Step 3: Cross multiply
    81,937.52x = 113,073.66 × 46,139.09
  4. Step 4: Simplify right side
    81,937.52x = 5,217,116,058.05
  5. Step 5: Solve for x
    x = 5,217,116,058.05/81,937.52
  6. Step 6: Final answer
    x = 63,671.89

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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.