Home / 75,439.95-113,160.08-28,065.43

Finding the Fourth Proportional to 75,439.95, 113,160.08 and 28,065.43

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Solution

The fourth proportional to 75,439.95, 113,160.08 and 28,065.43 is: 42,098.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,439.95 : 113,160.08 = 28,065.43 : x
  2. Step 2: Convert to fraction form
    75,439.95/113,160.08 = 28,065.43/x
  3. Step 3: Cross multiply
    75,439.95x = 113,160.08 × 28,065.43
  4. Step 4: Simplify right side
    75,439.95x = 3,175,886,304.03
  5. Step 5: Solve for x
    x = 3,175,886,304.03/75,439.95
  6. Step 6: Final answer
    x = 42,098.20

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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.