Home / 74,751.16-103,155.28-40,759.92

Finding the Fourth Proportional to 74,751.16, 103,155.28 and 40,759.92

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Solution

The fourth proportional to 74,751.16, 103,155.28 and 40,759.92 is: 56,247.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,751.16 : 103,155.28 = 40,759.92 : x
  2. Step 2: Convert to fraction form
    74,751.16/103,155.28 = 40,759.92/x
  3. Step 3: Cross multiply
    74,751.16x = 103,155.28 × 40,759.92
  4. Step 4: Simplify right side
    74,751.16x = 4,204,600,960.38
  5. Step 5: Solve for x
    x = 4,204,600,960.38/74,751.16
  6. Step 6: Final answer
    x = 56,247.97

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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.