Home / 57,916.60-86,729.10-38,087.80

Finding the Fourth Proportional to 57,916.60, 86,729.10 and 38,087.80

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Solution

The fourth proportional to 57,916.60, 86,729.10 and 38,087.80 is: 57,035.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,916.60 : 86,729.10 = 38,087.80 : x
  2. Step 2: Convert to fraction form
    57,916.60/86,729.10 = 38,087.80/x
  3. Step 3: Cross multiply
    57,916.60x = 86,729.10 × 38,087.80
  4. Step 4: Simplify right side
    57,916.60x = 3,303,320,614.98
  5. Step 5: Solve for x
    x = 3,303,320,614.98/57,916.60
  6. Step 6: Final answer
    x = 57,035.82

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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.