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Finding the Fourth Proportional to 70,377.78, 97,121.34 and 38,548.65

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Solution

The fourth proportional to 70,377.78, 97,121.34 and 38,548.65 is: 53,197.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,377.78 : 97,121.34 = 38,548.65 : x
  2. Step 2: Convert to fraction form
    70,377.78/97,121.34 = 38,548.65/x
  3. Step 3: Cross multiply
    70,377.78x = 97,121.34 × 38,548.65
  4. Step 4: Simplify right side
    70,377.78x = 3,743,896,543.19
  5. Step 5: Solve for x
    x = 3,743,896,543.19/70,377.78
  6. Step 6: Final answer
    x = 53,197.14

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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.