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Finding the Fourth Proportional to 52,754.87, 79,140.12 and 15,315.25

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Solution

The fourth proportional to 52,754.87, 79,140.12 and 15,315.25 is: 22,975.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,754.87 : 79,140.12 = 15,315.25 : x
  2. Step 2: Convert to fraction form
    52,754.87/79,140.12 = 15,315.25/x
  3. Step 3: Cross multiply
    52,754.87x = 79,140.12 × 15,315.25
  4. Step 4: Simplify right side
    52,754.87x = 1,212,050,524.98
  5. Step 5: Solve for x
    x = 1,212,050,524.98/52,754.87
  6. Step 6: Final answer
    x = 22,975.14

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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.