Home / 92,431.10-138,646.68-25,881.04

Finding the Fourth Proportional to 92,431.10, 138,646.68 and 25,881.04

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Solution

The fourth proportional to 92,431.10, 138,646.68 and 25,881.04 is: 38,821.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,431.10 : 138,646.68 = 25,881.04 : x
  2. Step 2: Convert to fraction form
    92,431.10/138,646.68 = 25,881.04/x
  3. Step 3: Cross multiply
    92,431.10x = 138,646.68 × 25,881.04
  4. Step 4: Simplify right side
    92,431.10x = 3,588,320,270.95
  5. Step 5: Solve for x
    x = 3,588,320,270.95/92,431.10
  6. Step 6: Final answer
    x = 38,821.57

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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.