Home / 89,031.56-122,864.82-49,287.56

Finding the Fourth Proportional to 89,031.56, 122,864.82 and 49,287.56

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Solution

The fourth proportional to 89,031.56, 122,864.82 and 49,287.56 is: 68,017.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,031.56 : 122,864.82 = 49,287.56 : x
  2. Step 2: Convert to fraction form
    89,031.56/122,864.82 = 49,287.56/x
  3. Step 3: Cross multiply
    89,031.56x = 122,864.82 × 49,287.56
  4. Step 4: Simplify right side
    89,031.56x = 6,055,707,187.64
  5. Step 5: Solve for x
    x = 6,055,707,187.64/89,031.56
  6. Step 6: Final answer
    x = 68,017.53

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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.