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Finding the Fourth Proportional to 66,608.64, 99,427.04 and 58,201

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Solution

The fourth proportional to 66,608.64, 99,427.04 and 58,201 is: 86,876.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,608.64 : 99,427.04 = 58,201 : x
  2. Step 2: Convert to fraction form
    66,608.64/99,427.04 = 58,201/x
  3. Step 3: Cross multiply
    66,608.64x = 99,427.04 × 58,201
  4. Step 4: Simplify right side
    66,608.64x = 5,786,753,155.04
  5. Step 5: Solve for x
    x = 5,786,753,155.04/66,608.64
  6. Step 6: Final answer
    x = 86,876.91

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.