Home / 74,765.28-103,174.80-40,774.04

Finding the Fourth Proportional to 74,765.28, 103,174.80 and 40,774.04

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Solution

The fourth proportional to 74,765.28, 103,174.80 and 40,774.04 is: 56,267.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,765.28 : 103,174.80 = 40,774.04 : x
  2. Step 2: Convert to fraction form
    74,765.28/103,174.80 = 40,774.04/x
  3. Step 3: Cross multiply
    74,765.28x = 103,174.80 × 40,774.04
  4. Step 4: Simplify right side
    74,765.28x = 4,206,853,422.19
  5. Step 5: Solve for x
    x = 4,206,853,422.19/74,765.28
  6. Step 6: Final answer
    x = 56,267.47

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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.