Home / 80,935.39-121,416.05-34,188.67

Finding the Fourth Proportional to 80,935.39, 121,416.05 and 34,188.67

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Solution

The fourth proportional to 80,935.39, 121,416.05 and 34,188.67 is: 51,288.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,935.39 : 121,416.05 = 34,188.67 : x
  2. Step 2: Convert to fraction form
    80,935.39/121,416.05 = 34,188.67/x
  3. Step 3: Cross multiply
    80,935.39x = 121,416.05 × 34,188.67
  4. Step 4: Simplify right side
    80,935.39x = 4,151,053,266.15
  5. Step 5: Solve for x
    x = 4,151,053,266.15/80,935.39
  6. Step 6: Final answer
    x = 51,288.48

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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.