Home / 66,757.05-92,132.91-39,899.34

Finding the Fourth Proportional to 66,757.05, 92,132.91 and 39,899.34

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Solution

The fourth proportional to 66,757.05, 92,132.91 and 39,899.34 is: 55,065.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,757.05 : 92,132.91 = 39,899.34 : x
  2. Step 2: Convert to fraction form
    66,757.05/92,132.91 = 39,899.34/x
  3. Step 3: Cross multiply
    66,757.05x = 92,132.91 × 39,899.34
  4. Step 4: Simplify right side
    66,757.05x = 3,676,042,301.28
  5. Step 5: Solve for x
    x = 3,676,042,301.28/66,757.05
  6. Step 6: Final answer
    x = 55,065.98

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1.5x scale

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.