Home / 75,640.32-113,459.94-25,725.42

Finding the Fourth Proportional to 75,640.32, 113,459.94 and 25,725.42

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Solution

The fourth proportional to 75,640.32, 113,459.94 and 25,725.42 is: 38,587.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,640.32 : 113,459.94 = 25,725.42 : x
  2. Step 2: Convert to fraction form
    75,640.32/113,459.94 = 25,725.42/x
  3. Step 3: Cross multiply
    75,640.32x = 113,459.94 × 25,725.42
  4. Step 4: Simplify right side
    75,640.32x = 2,918,804,609.67
  5. Step 5: Solve for x
    x = 2,918,804,609.67/75,640.32
  6. Step 6: Final answer
    x = 38,587.95

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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.