Home / 68,001.78-101,916.30-38,436.24

Finding the Fourth Proportional to 68,001.78, 101,916.30 and 38,436.24

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Solution

The fourth proportional to 68,001.78, 101,916.30 and 38,436.24 is: 57,605.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,001.78 : 101,916.30 = 38,436.24 : x
  2. Step 2: Convert to fraction form
    68,001.78/101,916.30 = 38,436.24/x
  3. Step 3: Cross multiply
    68,001.78x = 101,916.30 × 38,436.24
  4. Step 4: Simplify right side
    68,001.78x = 3,917,279,366.71
  5. Step 5: Solve for x
    x = 3,917,279,366.71/68,001.78
  6. Step 6: Final answer
    x = 57,605.54

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1.5x scale

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.