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Finding the Fourth Proportional to 66,595.80, 99,858.16 and 29,112

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Solution

The fourth proportional to 66,595.80, 99,858.16 and 29,112 is: 43,652.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,595.80 : 99,858.16 = 29,112 : x
  2. Step 2: Convert to fraction form
    66,595.80/99,858.16 = 29,112/x
  3. Step 3: Cross multiply
    66,595.80x = 99,858.16 × 29,112
  4. Step 4: Simplify right side
    66,595.80x = 2,907,070,753.92
  5. Step 5: Solve for x
    x = 2,907,070,753.92/66,595.80
  6. Step 6: Final answer
    x = 43,652.46

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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.