Home / 52,056.50-78,086.94-15,120.50

Finding the Fourth Proportional to 52,056.50, 78,086.94 and 15,120.50

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Solution

The fourth proportional to 52,056.50, 78,086.94 and 15,120.50 is: 22,681.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,056.50 : 78,086.94 = 15,120.50 : x
  2. Step 2: Convert to fraction form
    52,056.50/78,086.94 = 15,120.50/x
  3. Step 3: Cross multiply
    52,056.50x = 78,086.94 × 15,120.50
  4. Step 4: Simplify right side
    52,056.50x = 1,180,713,576.27
  5. Step 5: Solve for x
    x = 1,180,713,576.27/52,056.50
  6. Step 6: Final answer
    x = 22,681.39

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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.