Home / 66,115.29-99,086.30-30,572.10

Finding the Fourth Proportional to 66,115.29, 99,086.30 and 30,572.10

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Solution

The fourth proportional to 66,115.29, 99,086.30 and 30,572.10 is: 45,818.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,115.29 : 99,086.30 = 30,572.10 : x
  2. Step 2: Convert to fraction form
    66,115.29/99,086.30 = 30,572.10/x
  3. Step 3: Cross multiply
    66,115.29x = 99,086.30 × 30,572.10
  4. Step 4: Simplify right side
    66,115.29x = 3,029,276,272.23
  5. Step 5: Solve for x
    x = 3,029,276,272.23/66,115.29
  6. Step 6: Final answer
    x = 45,818.09

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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.