Home / 81,706.24-122,570.88-29,100.16

Finding the Fourth Proportional to 81,706.24, 122,570.88 and 29,100.16

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Solution

The fourth proportional to 81,706.24, 122,570.88 and 29,100.16 is: 43,654.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,706.24 : 122,570.88 = 29,100.16 : x
  2. Step 2: Convert to fraction form
    81,706.24/122,570.88 = 29,100.16/x
  3. Step 3: Cross multiply
    81,706.24x = 122,570.88 × 29,100.16
  4. Step 4: Simplify right side
    81,706.24x = 3,566,832,219.34
  5. Step 5: Solve for x
    x = 3,566,832,219.34/81,706.24
  6. Step 6: Final answer
    x = 43,654.34

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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.