Home / 87,528.60-120,789.96-49,802.85

Finding the Fourth Proportional to 87,528.60, 120,789.96 and 49,802.85

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Solution

The fourth proportional to 87,528.60, 120,789.96 and 49,802.85 is: 68,728.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,528.60 : 120,789.96 = 49,802.85 : x
  2. Step 2: Convert to fraction form
    87,528.60/120,789.96 = 49,802.85/x
  3. Step 3: Cross multiply
    87,528.60x = 120,789.96 × 49,802.85
  4. Step 4: Simplify right side
    87,528.60x = 6,015,684,259.39
  5. Step 5: Solve for x
    x = 6,015,684,259.39/87,528.60
  6. Step 6: Final answer
    x = 68,728.21

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1.5x scale

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.