Home / 92,431.33-138,636.29-25,876.78

Finding the Fourth Proportional to 92,431.33, 138,636.29 and 25,876.78

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Solution

The fourth proportional to 92,431.33, 138,636.29 and 25,876.78 is: 38,812.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,431.33 : 138,636.29 = 25,876.78 : x
  2. Step 2: Convert to fraction form
    92,431.33/138,636.29 = 25,876.78/x
  3. Step 3: Cross multiply
    92,431.33x = 138,636.29 × 25,876.78
  4. Step 4: Simplify right side
    92,431.33x = 3,587,460,646.96
  5. Step 5: Solve for x
    x = 3,587,460,646.96/92,431.33
  6. Step 6: Final answer
    x = 38,812.17

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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.