Home / 83,602.32-115,257.28-59,687.40

Finding the Fourth Proportional to 83,602.32, 115,257.28 and 59,687.40

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Solution

The fourth proportional to 83,602.32, 115,257.28 and 59,687.40 is: 82,287.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,602.32 : 115,257.28 = 59,687.40 : x
  2. Step 2: Convert to fraction form
    83,602.32/115,257.28 = 59,687.40/x
  3. Step 3: Cross multiply
    83,602.32x = 115,257.28 × 59,687.40
  4. Step 4: Simplify right side
    83,602.32x = 6,879,407,374.27
  5. Step 5: Solve for x
    x = 6,879,407,374.27/83,602.32
  6. Step 6: Final answer
    x = 82,287.28

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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.