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Finding the Fourth Proportional to 66,229.80, 99,279.90 and 26,734.20

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Solution

The fourth proportional to 66,229.80, 99,279.90 and 26,734.20 is: 40,075.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,229.80 : 99,279.90 = 26,734.20 : x
  2. Step 2: Convert to fraction form
    66,229.80/99,279.90 = 26,734.20/x
  3. Step 3: Cross multiply
    66,229.80x = 99,279.90 × 26,734.20
  4. Step 4: Simplify right side
    66,229.80x = 2,654,168,702.58
  5. Step 5: Solve for x
    x = 2,654,168,702.58/66,229.80
  6. Step 6: Final answer
    x = 40,075.14

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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.