Home / 68,780.10-94,916.17-38,565.39

Finding the Fourth Proportional to 68,780.10, 94,916.17 and 38,565.39

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Solution

The fourth proportional to 68,780.10, 94,916.17 and 38,565.39 is: 53,220.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,780.10 : 94,916.17 = 38,565.39 : x
  2. Step 2: Convert to fraction form
    68,780.10/94,916.17 = 38,565.39/x
  3. Step 3: Cross multiply
    68,780.10x = 94,916.17 × 38,565.39
  4. Step 4: Simplify right side
    68,780.10x = 3,660,478,542.36
  5. Step 5: Solve for x
    x = 3,660,478,542.36/68,780.10
  6. Step 6: Final answer
    x = 53,220.03

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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.