Home / 115,787.60-173,665.20-36,909.80

Finding the Fourth Proportional to 115,787.60, 173,665.20 and 36,909.80

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Solution

The fourth proportional to 115,787.60, 173,665.20 and 36,909.80 is: 55,359.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,787.60 : 173,665.20 = 36,909.80 : x
  2. Step 2: Convert to fraction form
    115,787.60/173,665.20 = 36,909.80/x
  3. Step 3: Cross multiply
    115,787.60x = 173,665.20 × 36,909.80
  4. Step 4: Simplify right side
    115,787.60x = 6,409,947,798.96
  5. Step 5: Solve for x
    x = 6,409,947,798.96/115,787.60
  6. Step 6: Final answer
    x = 55,359.54

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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.