Home / 69,872.78-96,421.25-38,041.61

Finding the Fourth Proportional to 69,872.78, 96,421.25 and 38,041.61

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Solution

The fourth proportional to 69,872.78, 96,421.25 and 38,041.61 is: 52,495.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,872.78 : 96,421.25 = 38,041.61 : x
  2. Step 2: Convert to fraction form
    69,872.78/96,421.25 = 38,041.61/x
  3. Step 3: Cross multiply
    69,872.78x = 96,421.25 × 38,041.61
  4. Step 4: Simplify right side
    69,872.78x = 3,668,019,201.21
  5. Step 5: Solve for x
    x = 3,668,019,201.21/69,872.78
  6. Step 6: Final answer
    x = 52,495.68

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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.