Home / 66,439.50-99,659.61-17,191.50

Finding the Fourth Proportional to 66,439.50, 99,659.61 and 17,191.50

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Solution

The fourth proportional to 66,439.50, 99,659.61 and 17,191.50 is: 25,787.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,439.50 : 99,659.61 = 17,191.50 : x
  2. Step 2: Convert to fraction form
    66,439.50/99,659.61 = 17,191.50/x
  3. Step 3: Cross multiply
    66,439.50x = 99,659.61 × 17,191.50
  4. Step 4: Simplify right side
    66,439.50x = 1,713,298,185.32
  5. Step 5: Solve for x
    x = 1,713,298,185.32/66,439.50
  6. Step 6: Final answer
    x = 25,787.34

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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.