Home / 77,146.92-106,439.13-50,279.67

Finding the Fourth Proportional to 77,146.92, 106,439.13 and 50,279.67

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Solution

The fourth proportional to 77,146.92, 106,439.13 and 50,279.67 is: 69,370.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,146.92 : 106,439.13 = 50,279.67 : x
  2. Step 2: Convert to fraction form
    77,146.92/106,439.13 = 50,279.67/x
  3. Step 3: Cross multiply
    77,146.92x = 106,439.13 × 50,279.67
  4. Step 4: Simplify right side
    77,146.92x = 5,351,724,331.49
  5. Step 5: Solve for x
    x = 5,351,724,331.49/77,146.92
  6. Step 6: Final answer
    x = 69,370.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.