Home / 83,138.24-124,749.06-38,768.48

Finding the Fourth Proportional to 83,138.24, 124,749.06 and 38,768.48

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Solution

The fourth proportional to 83,138.24, 124,749.06 and 38,768.48 is: 58,172.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,138.24 : 124,749.06 = 38,768.48 : x
  2. Step 2: Convert to fraction form
    83,138.24/124,749.06 = 38,768.48/x
  3. Step 3: Cross multiply
    83,138.24x = 124,749.06 × 38,768.48
  4. Step 4: Simplify right side
    83,138.24x = 4,836,331,437.63
  5. Step 5: Solve for x
    x = 4,836,331,437.63/83,138.24
  6. Step 6: Final answer
    x = 58,172.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.