Home / 91,069.18-125,618.65-58,791.39

Finding the Fourth Proportional to 91,069.18, 125,618.65 and 58,791.39

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Solution

The fourth proportional to 91,069.18, 125,618.65 and 58,791.39 is: 81,095.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,069.18 : 125,618.65 = 58,791.39 : x
  2. Step 2: Convert to fraction form
    91,069.18/125,618.65 = 58,791.39/x
  3. Step 3: Cross multiply
    91,069.18x = 125,618.65 × 58,791.39
  4. Step 4: Simplify right side
    91,069.18x = 7,385,294,425.38
  5. Step 5: Solve for x
    x = 7,385,294,425.38/91,069.18
  6. Step 6: Final answer
    x = 81,095.43

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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.