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Finding the Fourth Proportional to 60,321.72, 90,482.58 and 18,760.44

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Solution

The fourth proportional to 60,321.72, 90,482.58 and 18,760.44 is: 28,140.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,321.72 : 90,482.58 = 18,760.44 : x
  2. Step 2: Convert to fraction form
    60,321.72/90,482.58 = 18,760.44/x
  3. Step 3: Cross multiply
    60,321.72x = 90,482.58 × 18,760.44
  4. Step 4: Simplify right side
    60,321.72x = 1,697,493,013.14
  5. Step 5: Solve for x
    x = 1,697,493,013.14/60,321.72
  6. Step 6: Final answer
    x = 28,140.66

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Similar ratio
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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.