Home / 75,439.24-113,159-28,064.72

Finding the Fourth Proportional to 75,439.24, 113,159 and 28,064.72

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Solution

The fourth proportional to 75,439.24, 113,159 and 28,064.72 is: 42,097.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,439.24 : 113,159 = 28,064.72 : x
  2. Step 2: Convert to fraction form
    75,439.24/113,159 = 28,064.72/x
  3. Step 3: Cross multiply
    75,439.24x = 113,159 × 28,064.72
  4. Step 4: Simplify right side
    75,439.24x = 3,175,775,084.69
  5. Step 5: Solve for x
    x = 3,175,775,084.69/75,439.24
  6. Step 6: Final answer
    x = 42,097.13

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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.