Home / 52,074.65-78,112.04-12,631.83

Finding the Fourth Proportional to 52,074.65, 78,112.04 and 12,631.83

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Solution

The fourth proportional to 52,074.65, 78,112.04 and 12,631.83 is: 18,947.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,074.65 : 78,112.04 = 12,631.83 : x
  2. Step 2: Convert to fraction form
    52,074.65/78,112.04 = 12,631.83/x
  3. Step 3: Cross multiply
    52,074.65x = 78,112.04 × 12,631.83
  4. Step 4: Simplify right side
    52,074.65x = 986,698,010.23
  5. Step 5: Solve for x
    x = 986,698,010.23/52,074.65
  6. Step 6: Final answer
    x = 18,947.76

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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.