Home / 68,003.28-101,918.55-38,437.74

Finding the Fourth Proportional to 68,003.28, 101,918.55 and 38,437.74

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Solution

The fourth proportional to 68,003.28, 101,918.55 and 38,437.74 is: 57,607.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,003.28 : 101,918.55 = 38,437.74 : x
  2. Step 2: Convert to fraction form
    68,003.28/101,918.55 = 38,437.74/x
  3. Step 3: Cross multiply
    68,003.28x = 101,918.55 × 38,437.74
  4. Step 4: Simplify right side
    68,003.28x = 3,917,518,726.08
  5. Step 5: Solve for x
    x = 3,917,518,726.08/68,003.28
  6. Step 6: Final answer
    x = 57,607.79

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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.