Home / 57,219.20-85,828.80-26,115.20

Finding the Fourth Proportional to 57,219.20, 85,828.80 and 26,115.20

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Solution

The fourth proportional to 57,219.20, 85,828.80 and 26,115.20 is: 39,172.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,219.20 : 85,828.80 = 26,115.20 : x
  2. Step 2: Convert to fraction form
    57,219.20/85,828.80 = 26,115.20/x
  3. Step 3: Cross multiply
    57,219.20x = 85,828.80 × 26,115.20
  4. Step 4: Simplify right side
    57,219.20x = 2,241,436,277.76
  5. Step 5: Solve for x
    x = 2,241,436,277.76/57,219.20
  6. Step 6: Final answer
    x = 39,172.80

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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.