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Finding the Fourth Proportional to 84,684.60, 127,032.84 and 25,520.76

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Solution

The fourth proportional to 84,684.60, 127,032.84 and 25,520.76 is: 38,282.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,684.60 : 127,032.84 = 25,520.76 : x
  2. Step 2: Convert to fraction form
    84,684.60/127,032.84 = 25,520.76/x
  3. Step 3: Cross multiply
    84,684.60x = 127,032.84 × 25,520.76
  4. Step 4: Simplify right side
    84,684.60x = 3,241,974,621.76
  5. Step 5: Solve for x
    x = 3,241,974,621.76/84,684.60
  6. Step 6: Final answer
    x = 38,282.93

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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.