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Finding the Fourth Proportional to 84,770.40, 127,155.60 and 22,440.90

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Solution

The fourth proportional to 84,770.40, 127,155.60 and 22,440.90 is: 33,661.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,770.40 : 127,155.60 = 22,440.90 : x
  2. Step 2: Convert to fraction form
    84,770.40/127,155.60 = 22,440.90/x
  3. Step 3: Cross multiply
    84,770.40x = 127,155.60 × 22,440.90
  4. Step 4: Simplify right side
    84,770.40x = 2,853,486,104.04
  5. Step 5: Solve for x
    x = 2,853,486,104.04/84,770.40
  6. Step 6: Final answer
    x = 33,661.35

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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.