Home / 57,780.12-79,738.38-32,631.24

Finding the Fourth Proportional to 57,780.12, 79,738.38 and 32,631.24

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Solution

The fourth proportional to 57,780.12, 79,738.38 and 32,631.24 is: 45,032.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,780.12 : 79,738.38 = 32,631.24 : x
  2. Step 2: Convert to fraction form
    57,780.12/79,738.38 = 32,631.24/x
  3. Step 3: Cross multiply
    57,780.12x = 79,738.38 × 32,631.24
  4. Step 4: Simplify right side
    57,780.12x = 2,601,962,214.99
  5. Step 5: Solve for x
    x = 2,601,962,214.99/57,780.12
  6. Step 6: Final answer
    x = 45,032.14

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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.