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Finding the Fourth Proportional to 95,279.40, 142,919.10 and 28,729.80

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Solution

The fourth proportional to 95,279.40, 142,919.10 and 28,729.80 is: 43,094.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,279.40 : 142,919.10 = 28,729.80 : x
  2. Step 2: Convert to fraction form
    95,279.40/142,919.10 = 28,729.80/x
  3. Step 3: Cross multiply
    95,279.40x = 142,919.10 × 28,729.80
  4. Step 4: Simplify right side
    95,279.40x = 4,106,037,159.18
  5. Step 5: Solve for x
    x = 4,106,037,159.18/95,279.40
  6. Step 6: Final answer
    x = 43,094.70

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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.