Home / 90,139.47-135,212.57-26,960.41

Finding the Fourth Proportional to 90,139.47, 135,212.57 and 26,960.41

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Solution

The fourth proportional to 90,139.47, 135,212.57 and 26,960.41 is: 40,441.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,139.47 : 135,212.57 = 26,960.41 : x
  2. Step 2: Convert to fraction form
    90,139.47/135,212.57 = 26,960.41/x
  3. Step 3: Cross multiply
    90,139.47x = 135,212.57 × 26,960.41
  4. Step 4: Simplify right side
    90,139.47x = 3,645,386,324.35
  5. Step 5: Solve for x
    x = 3,645,386,324.35/90,139.47
  6. Step 6: Final answer
    x = 40,441.62

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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.