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Finding the Fourth Proportional to 60,135.32, 90,201.11 and 28,568.09

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Solution

The fourth proportional to 60,135.32, 90,201.11 and 28,568.09 is: 42,851.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,135.32 : 90,201.11 = 28,568.09 : x
  2. Step 2: Convert to fraction form
    60,135.32/90,201.11 = 28,568.09/x
  3. Step 3: Cross multiply
    60,135.32x = 90,201.11 × 28,568.09
  4. Step 4: Simplify right side
    60,135.32x = 2,576,873,285.74
  5. Step 5: Solve for x
    x = 2,576,873,285.74/60,135.32
  6. Step 6: Final answer
    x = 42,851.25

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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.