Home / 69,146.16-103,725.66-53,581.20

Finding the Fourth Proportional to 69,146.16, 103,725.66 and 53,581.20

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Solution

The fourth proportional to 69,146.16, 103,725.66 and 53,581.20 is: 80,376.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,146.16 : 103,725.66 = 53,581.20 : x
  2. Step 2: Convert to fraction form
    69,146.16/103,725.66 = 53,581.20/x
  3. Step 3: Cross multiply
    69,146.16x = 103,725.66 × 53,581.20
  4. Step 4: Simplify right side
    69,146.16x = 5,557,745,333.59
  5. Step 5: Solve for x
    x = 5,557,745,333.59/69,146.16
  6. Step 6: Final answer
    x = 80,376.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.