Home / 52,431.42-78,569.36-38,512.38

Finding the Fourth Proportional to 52,431.42, 78,569.36 and 38,512.38

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Solution

The fourth proportional to 52,431.42, 78,569.36 and 38,512.38 is: 57,711.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,431.42 : 78,569.36 = 38,512.38 : x
  2. Step 2: Convert to fraction form
    52,431.42/78,569.36 = 38,512.38/x
  3. Step 3: Cross multiply
    52,431.42x = 78,569.36 × 38,512.38
  4. Step 4: Simplify right side
    52,431.42x = 3,025,892,655.83
  5. Step 5: Solve for x
    x = 3,025,892,655.83/52,431.42
  6. Step 6: Final answer
    x = 57,711.44

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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.