Home / 53,520.96-80,220.69-18,431.76

Finding the Fourth Proportional to 53,520.96, 80,220.69 and 18,431.76

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Solution

The fourth proportional to 53,520.96, 80,220.69 and 18,431.76 is: 27,626.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,520.96 : 80,220.69 = 18,431.76 : x
  2. Step 2: Convert to fraction form
    53,520.96/80,220.69 = 18,431.76/x
  3. Step 3: Cross multiply
    53,520.96x = 80,220.69 × 18,431.76
  4. Step 4: Simplify right side
    53,520.96x = 1,478,608,505.11
  5. Step 5: Solve for x
    x = 1,478,608,505.11/53,520.96
  6. Step 6: Final answer
    x = 27,626.72

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1.5x scale

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.