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Finding the Fourth Proportional to 60,163.60, 90,253.13 and 28,120.30

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Solution

The fourth proportional to 60,163.60, 90,253.13 and 28,120.30 is: 42,184.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,163.60 : 90,253.13 = 28,120.30 : x
  2. Step 2: Convert to fraction form
    60,163.60/90,253.13 = 28,120.30/x
  3. Step 3: Cross multiply
    60,163.60x = 90,253.13 × 28,120.30
  4. Step 4: Simplify right side
    60,163.60x = 2,537,945,091.54
  5. Step 5: Solve for x
    x = 2,537,945,091.54/60,163.60
  6. Step 6: Final answer
    x = 42,184.06

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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.