Home / 74,689.76-111,947.97-30,261.26

Finding the Fourth Proportional to 74,689.76, 111,947.97 and 30,261.26

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Solution

The fourth proportional to 74,689.76, 111,947.97 and 30,261.26 is: 45,356.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,689.76 : 111,947.97 = 30,261.26 : x
  2. Step 2: Convert to fraction form
    74,689.76/111,947.97 = 30,261.26/x
  3. Step 3: Cross multiply
    74,689.76x = 111,947.97 × 30,261.26
  4. Step 4: Simplify right side
    74,689.76x = 3,387,686,626.64
  5. Step 5: Solve for x
    x = 3,387,686,626.64/74,689.76
  6. Step 6: Final answer
    x = 45,356.77

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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.