Home / 66,049.20-99,070.32-21,670.11

Finding the Fourth Proportional to 66,049.20, 99,070.32 and 21,670.11

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Solution

The fourth proportional to 66,049.20, 99,070.32 and 21,670.11 is: 32,504.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,049.20 : 99,070.32 = 21,670.11 : x
  2. Step 2: Convert to fraction form
    66,049.20/99,070.32 = 21,670.11/x
  3. Step 3: Cross multiply
    66,049.20x = 99,070.32 × 21,670.11
  4. Step 4: Simplify right side
    66,049.20x = 2,146,864,732.14
  5. Step 5: Solve for x
    x = 2,146,864,732.14/66,049.20
  6. Step 6: Final answer
    x = 32,504.02

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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.