Home / 85,791.11-118,394.76-51,792.95

Finding the Fourth Proportional to 85,791.11, 118,394.76 and 51,792.95

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Solution

The fourth proportional to 85,791.11, 118,394.76 and 51,792.95 is: 71,476.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,791.11 : 118,394.76 = 51,792.95 : x
  2. Step 2: Convert to fraction form
    85,791.11/118,394.76 = 51,792.95/x
  3. Step 3: Cross multiply
    85,791.11x = 118,394.76 × 51,792.95
  4. Step 4: Simplify right side
    85,791.11x = 6,132,013,292.97
  5. Step 5: Solve for x
    x = 6,132,013,292.97/85,791.11
  6. Step 6: Final answer
    x = 71,476.10

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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.