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Finding the Fourth Proportional to 66,009.92, 99,040.80 and 29,048

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Solution

The fourth proportional to 66,009.92, 99,040.80 and 29,048 is: 43,583.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,009.92 : 99,040.80 = 29,048 : x
  2. Step 2: Convert to fraction form
    66,009.92/99,040.80 = 29,048/x
  3. Step 3: Cross multiply
    66,009.92x = 99,040.80 × 29,048
  4. Step 4: Simplify right side
    66,009.92x = 2,876,937,158.40
  5. Step 5: Solve for x
    x = 2,876,937,158.40/66,009.92
  6. Step 6: Final answer
    x = 43,583.41

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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.