Home / 57,850.40-86,545.20-52,320.80

Finding the Fourth Proportional to 57,850.40, 86,545.20 and 52,320.80

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Solution

The fourth proportional to 57,850.40, 86,545.20 and 52,320.80 is: 78,272.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,850.40 : 86,545.20 = 52,320.80 : x
  2. Step 2: Convert to fraction form
    57,850.40/86,545.20 = 52,320.80/x
  3. Step 3: Cross multiply
    57,850.40x = 86,545.20 × 52,320.80
  4. Step 4: Simplify right side
    57,850.40x = 4,528,114,100.16
  5. Step 5: Solve for x
    x = 4,528,114,100.16/57,850.40
  6. Step 6: Final answer
    x = 78,272.82

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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.