Home / 83,890.08-115,672.32-62,633.52

Finding the Fourth Proportional to 83,890.08, 115,672.32 and 62,633.52

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Solution

The fourth proportional to 83,890.08, 115,672.32 and 62,633.52 is: 86,362.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,890.08 : 115,672.32 = 62,633.52 : x
  2. Step 2: Convert to fraction form
    83,890.08/115,672.32 = 62,633.52/x
  3. Step 3: Cross multiply
    83,890.08x = 115,672.32 × 62,633.52
  4. Step 4: Simplify right side
    83,890.08x = 7,244,964,568.17
  5. Step 5: Solve for x
    x = 7,244,964,568.17/83,890.08
  6. Step 6: Final answer
    x = 86,362.59

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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.