Home / 85,892.28-118,535.08-57,166.04

Finding the Fourth Proportional to 85,892.28, 118,535.08 and 57,166.04

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Solution

The fourth proportional to 85,892.28, 118,535.08 and 57,166.04 is: 78,891.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,892.28 : 118,535.08 = 57,166.04 : x
  2. Step 2: Convert to fraction form
    85,892.28/118,535.08 = 57,166.04/x
  3. Step 3: Cross multiply
    85,892.28x = 118,535.08 × 57,166.04
  4. Step 4: Simplify right side
    85,892.28x = 6,776,180,389.09
  5. Step 5: Solve for x
    x = 6,776,180,389.09/85,892.28
  6. Step 6: Final answer
    x = 78,891.61

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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.