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Finding the Fourth Proportional to 84,799.98, 127,195.92 and 28,636.20

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Solution

The fourth proportional to 84,799.98, 127,195.92 and 28,636.20 is: 42,952.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,799.98 : 127,195.92 = 28,636.20 : x
  2. Step 2: Convert to fraction form
    84,799.98/127,195.92 = 28,636.20/x
  3. Step 3: Cross multiply
    84,799.98x = 127,195.92 × 28,636.20
  4. Step 4: Simplify right side
    84,799.98x = 3,642,407,804.30
  5. Step 5: Solve for x
    x = 3,642,407,804.30/84,799.98
  6. Step 6: Final answer
    x = 42,952.93

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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.