Home / 84,938.78-127,401.66-25,774.76

Finding the Fourth Proportional to 84,938.78, 127,401.66 and 25,774.76

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Solution

The fourth proportional to 84,938.78, 127,401.66 and 25,774.76 is: 38,660.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,938.78 : 127,401.66 = 25,774.76 : x
  2. Step 2: Convert to fraction form
    84,938.78/127,401.66 = 25,774.76/x
  3. Step 3: Cross multiply
    84,938.78x = 127,401.66 × 25,774.76
  4. Step 4: Simplify right side
    84,938.78x = 3,283,747,210.10
  5. Step 5: Solve for x
    x = 3,283,747,210.10/84,938.78
  6. Step 6: Final answer
    x = 38,660.16

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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.