Home / 75,052.40-112,568.87-28,299.20

Finding the Fourth Proportional to 75,052.40, 112,568.87 and 28,299.20

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Solution

The fourth proportional to 75,052.40, 112,568.87 and 28,299.20 is: 42,445.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,052.40 : 112,568.87 = 28,299.20 : x
  2. Step 2: Convert to fraction form
    75,052.40/112,568.87 = 28,299.20/x
  3. Step 3: Cross multiply
    75,052.40x = 112,568.87 × 28,299.20
  4. Step 4: Simplify right side
    75,052.40x = 3,185,608,261.56
  5. Step 5: Solve for x
    x = 3,185,608,261.56/75,052.40
  6. Step 6: Final answer
    x = 42,445.12

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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.