Home / 40,769.78-61,148.12-11,180.70

Finding the Fourth Proportional to 40,769.78, 61,148.12 and 11,180.70

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Solution

The fourth proportional to 40,769.78, 61,148.12 and 11,180.70 is: 16,769.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,769.78 : 61,148.12 = 11,180.70 : x
  2. Step 2: Convert to fraction form
    40,769.78/61,148.12 = 11,180.70/x
  3. Step 3: Cross multiply
    40,769.78x = 61,148.12 × 11,180.70
  4. Step 4: Simplify right side
    40,769.78x = 683,678,729.38
  5. Step 5: Solve for x
    x = 683,678,729.38/40,769.78
  6. Step 6: Final answer
    x = 16,769.25

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1.5x scale

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.