Home / 83,845.13-115,707.78-45,605.52

Finding the Fourth Proportional to 83,845.13, 115,707.78 and 45,605.52

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Solution

The fourth proportional to 83,845.13, 115,707.78 and 45,605.52 is: 62,936.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,845.13 : 115,707.78 = 45,605.52 : x
  2. Step 2: Convert to fraction form
    83,845.13/115,707.78 = 45,605.52/x
  3. Step 3: Cross multiply
    83,845.13x = 115,707.78 × 45,605.52
  4. Step 4: Simplify right side
    83,845.13x = 5,276,913,474.95
  5. Step 5: Solve for x
    x = 5,276,913,474.95/83,845.13
  6. Step 6: Final answer
    x = 62,936.44

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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.