Home / 53,627.20-80,505.60-53,238.40

Finding the Fourth Proportional to 53,627.20, 80,505.60 and 53,238.40

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Solution

The fourth proportional to 53,627.20, 80,505.60 and 53,238.40 is: 79,921.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,627.20 : 80,505.60 = 53,238.40 : x
  2. Step 2: Convert to fraction form
    53,627.20/80,505.60 = 53,238.40/x
  3. Step 3: Cross multiply
    53,627.20x = 80,505.60 × 53,238.40
  4. Step 4: Simplify right side
    53,627.20x = 4,285,989,335.04
  5. Step 5: Solve for x
    x = 4,285,989,335.04/53,627.20
  6. Step 6: Final answer
    x = 79,921.93

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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.