Home / 70,738.17-97,618.82-38,906.43

Finding the Fourth Proportional to 70,738.17, 97,618.82 and 38,906.43

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Solution

The fourth proportional to 70,738.17, 97,618.82 and 38,906.43 is: 53,690.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,738.17 : 97,618.82 = 38,906.43 : x
  2. Step 2: Convert to fraction form
    70,738.17/97,618.82 = 38,906.43/x
  3. Step 3: Cross multiply
    70,738.17x = 97,618.82 × 38,906.43
  4. Step 4: Simplify right side
    70,738.17x = 3,797,999,787.01
  5. Step 5: Solve for x
    x = 3,797,999,787.01/70,738.17
  6. Step 6: Final answer
    x = 53,690.95

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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.