Home / 70,899.78-106,349.82-66,569.52

Finding the Fourth Proportional to 70,899.78, 106,349.82 and 66,569.52

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Solution

The fourth proportional to 70,899.78, 106,349.82 and 66,569.52 is: 99,854.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,899.78 : 106,349.82 = 66,569.52 : x
  2. Step 2: Convert to fraction form
    70,899.78/106,349.82 = 66,569.52/x
  3. Step 3: Cross multiply
    70,899.78x = 106,349.82 × 66,569.52
  4. Step 4: Simplify right side
    70,899.78x = 7,079,656,469.49
  5. Step 5: Solve for x
    x = 7,079,656,469.49/70,899.78
  6. Step 6: Final answer
    x = 99,854.42

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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.