Home / 40,775.76-61,155.78-12,696.12

Finding the Fourth Proportional to 40,775.76, 61,155.78 and 12,696.12

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Solution

The fourth proportional to 40,775.76, 61,155.78 and 12,696.12 is: 19,041.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,775.76 : 61,155.78 = 12,696.12 : x
  2. Step 2: Convert to fraction form
    40,775.76/61,155.78 = 12,696.12/x
  3. Step 3: Cross multiply
    40,775.76x = 61,155.78 × 12,696.12
  4. Step 4: Simplify right side
    40,775.76x = 776,441,121.57
  5. Step 5: Solve for x
    x = 776,441,121.57/40,775.76
  6. Step 6: Final answer
    x = 19,041.73

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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.