Home / 69,681.28-96,139.56-41,389.60

Finding the Fourth Proportional to 69,681.28, 96,139.56 and 41,389.60

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Solution

The fourth proportional to 69,681.28, 96,139.56 and 41,389.60 is: 57,105.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,681.28 : 96,139.56 = 41,389.60 : x
  2. Step 2: Convert to fraction form
    69,681.28/96,139.56 = 41,389.60/x
  3. Step 3: Cross multiply
    69,681.28x = 96,139.56 × 41,389.60
  4. Step 4: Simplify right side
    69,681.28x = 3,979,177,932.58
  5. Step 5: Solve for x
    x = 3,979,177,932.58/69,681.28
  6. Step 6: Final answer
    x = 57,105.41

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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.