Home / 83,228.04-114,781.46-66,213.18

Finding the Fourth Proportional to 83,228.04, 114,781.46 and 66,213.18

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Solution

The fourth proportional to 83,228.04, 114,781.46 and 66,213.18 is: 91,315.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,228.04 : 114,781.46 = 66,213.18 : x
  2. Step 2: Convert to fraction form
    83,228.04/114,781.46 = 66,213.18/x
  3. Step 3: Cross multiply
    83,228.04x = 114,781.46 × 66,213.18
  4. Step 4: Simplify right side
    83,228.04x = 7,600,045,140.58
  5. Step 5: Solve for x
    x = 7,600,045,140.58/83,228.04
  6. Step 6: Final answer
    x = 91,315.92

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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.