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Finding the Fourth Proportional to 84,761.97, 127,155.30 and 25,602.40

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Solution

The fourth proportional to 84,761.97, 127,155.30 and 25,602.40 is: 38,407.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,761.97 : 127,155.30 = 25,602.40 : x
  2. Step 2: Convert to fraction form
    84,761.97/127,155.30 = 25,602.40/x
  3. Step 3: Cross multiply
    84,761.97x = 127,155.30 × 25,602.40
  4. Step 4: Simplify right side
    84,761.97x = 3,255,480,852.72
  5. Step 5: Solve for x
    x = 3,255,480,852.72/84,761.97
  6. Step 6: Final answer
    x = 38,407.33

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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.