Home / 66,982.10-92,391.09-43,070.90

Finding the Fourth Proportional to 66,982.10, 92,391.09 and 43,070.90

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Solution

The fourth proportional to 66,982.10, 92,391.09 and 43,070.90 is: 59,409.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,982.10 : 92,391.09 = 43,070.90 : x
  2. Step 2: Convert to fraction form
    66,982.10/92,391.09 = 43,070.90/x
  3. Step 3: Cross multiply
    66,982.10x = 92,391.09 × 43,070.90
  4. Step 4: Simplify right side
    66,982.10x = 3,979,367,398.28
  5. Step 5: Solve for x
    x = 3,979,367,398.28/66,982.10
  6. Step 6: Final answer
    x = 59,409.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.