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Finding the Fourth Proportional to 55,600.80, 83,372.40 and 20,522.40

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Solution

The fourth proportional to 55,600.80, 83,372.40 and 20,522.40 is: 30,772.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,600.80 : 83,372.40 = 20,522.40 : x
  2. Step 2: Convert to fraction form
    55,600.80/83,372.40 = 20,522.40/x
  3. Step 3: Cross multiply
    55,600.80x = 83,372.40 × 20,522.40
  4. Step 4: Simplify right side
    55,600.80x = 1,711,001,741.76
  5. Step 5: Solve for x
    x = 1,711,001,741.76/55,600.80
  6. Step 6: Final answer
    x = 30,772.97

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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.