Home / 57,136.14-78,836.68-31,641.27

Finding the Fourth Proportional to 57,136.14, 78,836.68 and 31,641.27

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Solution

The fourth proportional to 57,136.14, 78,836.68 and 31,641.27 is: 43,658.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,136.14 : 78,836.68 = 31,641.27 : x
  2. Step 2: Convert to fraction form
    57,136.14/78,836.68 = 31,641.27/x
  3. Step 3: Cross multiply
    57,136.14x = 78,836.68 × 31,641.27
  4. Step 4: Simplify right side
    57,136.14x = 2,494,492,677.78
  5. Step 5: Solve for x
    x = 2,494,492,677.78/57,136.14
  6. Step 6: Final answer
    x = 43,658.75

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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.