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Finding the Fourth Proportional to 60,170.12, 90,201.60 and 28,560.68

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Solution

The fourth proportional to 60,170.12, 90,201.60 and 28,560.68 is: 42,815.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,170.12 : 90,201.60 = 28,560.68 : x
  2. Step 2: Convert to fraction form
    60,170.12/90,201.60 = 28,560.68/x
  3. Step 3: Cross multiply
    60,170.12x = 90,201.60 × 28,560.68
  4. Step 4: Simplify right side
    60,170.12x = 2,576,219,033.09
  5. Step 5: Solve for x
    x = 2,576,219,033.09/60,170.12
  6. Step 6: Final answer
    x = 42,815.59

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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.