Home / 66,113.11-91,223.26-39,264.04

Finding the Fourth Proportional to 66,113.11, 91,223.26 and 39,264.04

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Solution

The fourth proportional to 66,113.11, 91,223.26 and 39,264.04 is: 54,176.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,113.11 : 91,223.26 = 39,264.04 : x
  2. Step 2: Convert to fraction form
    66,113.11/91,223.26 = 39,264.04/x
  3. Step 3: Cross multiply
    66,113.11x = 91,223.26 × 39,264.04
  4. Step 4: Simplify right side
    66,113.11x = 3,581,793,966.30
  5. Step 5: Solve for x
    x = 3,581,793,966.30/66,113.11
  6. Step 6: Final answer
    x = 54,176.76

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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.