Home / 57,490.62-79,269.18-39,350.09

Finding the Fourth Proportional to 57,490.62, 79,269.18 and 39,350.09

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Solution

The fourth proportional to 57,490.62, 79,269.18 and 39,350.09 is: 54,256.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,490.62 : 79,269.18 = 39,350.09 : x
  2. Step 2: Convert to fraction form
    57,490.62/79,269.18 = 39,350.09/x
  3. Step 3: Cross multiply
    57,490.62x = 79,269.18 × 39,350.09
  4. Step 4: Simplify right side
    57,490.62x = 3,119,248,970.88
  5. Step 5: Solve for x
    x = 3,119,248,970.88/57,490.62
  6. Step 6: Final answer
    x = 54,256.66

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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.