Home / 52,276.14-78,389.52-18,972.90

Finding the Fourth Proportional to 52,276.14, 78,389.52 and 18,972.90

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Solution

The fourth proportional to 52,276.14, 78,389.52 and 18,972.90 is: 28,450.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,276.14 : 78,389.52 = 18,972.90 : x
  2. Step 2: Convert to fraction form
    52,276.14/78,389.52 = 18,972.90/x
  3. Step 3: Cross multiply
    52,276.14x = 78,389.52 × 18,972.90
  4. Step 4: Simplify right side
    52,276.14x = 1,487,276,524.01
  5. Step 5: Solve for x
    x = 1,487,276,524.01/52,276.14
  6. Step 6: Final answer
    x = 28,450.39

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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.