Home / 84,945.52-127,419.03-25,781.18

Finding the Fourth Proportional to 84,945.52, 127,419.03 and 25,781.18

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Solution

The fourth proportional to 84,945.52, 127,419.03 and 25,781.18 is: 38,672.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,945.52 : 127,419.03 = 25,781.18 : x
  2. Step 2: Convert to fraction form
    84,945.52/127,419.03 = 25,781.18/x
  3. Step 3: Cross multiply
    84,945.52x = 127,419.03 × 25,781.18
  4. Step 4: Simplify right side
    84,945.52x = 3,285,012,947.86
  5. Step 5: Solve for x
    x = 3,285,012,947.86/84,945.52
  6. Step 6: Final answer
    x = 38,672.00

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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.