Home / 84,747.78-127,118.02-25,581.68

Finding the Fourth Proportional to 84,747.78, 127,118.02 and 25,581.68

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Solution

The fourth proportional to 84,747.78, 127,118.02 and 25,581.68 is: 38,371.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,747.78 : 127,118.02 = 25,581.68 : x
  2. Step 2: Convert to fraction form
    84,747.78/127,118.02 = 25,581.68/x
  3. Step 3: Cross multiply
    84,747.78x = 127,118.02 × 25,581.68
  4. Step 4: Simplify right side
    84,747.78x = 3,251,892,903.02
  5. Step 5: Solve for x
    x = 3,251,892,903.02/84,747.78
  6. Step 6: Final answer
    x = 38,371.42

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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.