Home / 52,286.10-78,420.91-43,458.11

Finding the Fourth Proportional to 52,286.10, 78,420.91 and 43,458.11

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Solution

The fourth proportional to 52,286.10, 78,420.91 and 43,458.11 is: 65,180.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,286.10 : 78,420.91 = 43,458.11 : x
  2. Step 2: Convert to fraction form
    52,286.10/78,420.91 = 43,458.11/x
  3. Step 3: Cross multiply
    52,286.10x = 78,420.91 × 43,458.11
  4. Step 4: Simplify right side
    52,286.10x = 3,408,024,315.79
  5. Step 5: Solve for x
    x = 3,408,024,315.79/52,286.10
  6. Step 6: Final answer
    x = 65,180.32

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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.