Home / 68,939.24-103,417.76-24,578.78

Finding the Fourth Proportional to 68,939.24, 103,417.76 and 24,578.78

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Solution

The fourth proportional to 68,939.24, 103,417.76 and 24,578.78 is: 36,871.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,939.24 : 103,417.76 = 24,578.78 : x
  2. Step 2: Convert to fraction form
    68,939.24/103,417.76 = 24,578.78/x
  3. Step 3: Cross multiply
    68,939.24x = 103,417.76 × 24,578.78
  4. Step 4: Simplify right side
    68,939.24x = 2,541,881,915.49
  5. Step 5: Solve for x
    x = 2,541,881,915.49/68,939.24
  6. Step 6: Final answer
    x = 36,871.34

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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.