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Finding the Fourth Proportional to 66,739.30, 100,108.95 and 27,283.30

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Solution

The fourth proportional to 66,739.30, 100,108.95 and 27,283.30 is: 40,924.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,739.30 : 100,108.95 = 27,283.30 : x
  2. Step 2: Convert to fraction form
    66,739.30/100,108.95 = 27,283.30/x
  3. Step 3: Cross multiply
    66,739.30x = 100,108.95 × 27,283.30
  4. Step 4: Simplify right side
    66,739.30x = 2,731,302,515.54
  5. Step 5: Solve for x
    x = 2,731,302,515.54/66,739.30
  6. Step 6: Final answer
    x = 40,924.95

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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.