Home / 70,979.82-97,948.62-39,146.82

Finding the Fourth Proportional to 70,979.82, 97,948.62 and 39,146.82

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Solution

The fourth proportional to 70,979.82, 97,948.62 and 39,146.82 is: 54,020.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,979.82 : 97,948.62 = 39,146.82 : x
  2. Step 2: Convert to fraction form
    70,979.82/97,948.62 = 39,146.82/x
  3. Step 3: Cross multiply
    70,979.82x = 97,948.62 × 39,146.82
  4. Step 4: Simplify right side
    70,979.82x = 3,834,376,996.39
  5. Step 5: Solve for x
    x = 3,834,376,996.39/70,979.82
  6. Step 6: Final answer
    x = 54,020.66

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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.