Home / 92,340.71-138,515.31-28,294.26

Finding the Fourth Proportional to 92,340.71, 138,515.31 and 28,294.26

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Solution

The fourth proportional to 92,340.71, 138,515.31 and 28,294.26 is: 42,442.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,340.71 : 138,515.31 = 28,294.26 : x
  2. Step 2: Convert to fraction form
    92,340.71/138,515.31 = 28,294.26/x
  3. Step 3: Cross multiply
    92,340.71x = 138,515.31 × 28,294.26
  4. Step 4: Simplify right side
    92,340.71x = 3,919,188,195.12
  5. Step 5: Solve for x
    x = 3,919,188,195.12/92,340.71
  6. Step 6: Final answer
    x = 42,442.69

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1.5x scale

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.