Home / 84,781.08-127,150.56-25,612.20

Finding the Fourth Proportional to 84,781.08, 127,150.56 and 25,612.20

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Solution

The fourth proportional to 84,781.08, 127,150.56 and 25,612.20 is: 38,411.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,781.08 : 127,150.56 = 25,612.20 : x
  2. Step 2: Convert to fraction form
    84,781.08/127,150.56 = 25,612.20/x
  3. Step 3: Cross multiply
    84,781.08x = 127,150.56 × 25,612.20
  4. Step 4: Simplify right side
    84,781.08x = 3,256,605,572.83
  5. Step 5: Solve for x
    x = 3,256,605,572.83/84,781.08
  6. Step 6: Final answer
    x = 38,411.94

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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.