Home / 80,960.94-121,212.54-42,923.52

Finding the Fourth Proportional to 80,960.94, 121,212.54 and 42,923.52

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Solution

The fourth proportional to 80,960.94, 121,212.54 and 42,923.52 is: 64,263.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,960.94 : 121,212.54 = 42,923.52 : x
  2. Step 2: Convert to fraction form
    80,960.94/121,212.54 = 42,923.52/x
  3. Step 3: Cross multiply
    80,960.94x = 121,212.54 × 42,923.52
  4. Step 4: Simplify right side
    80,960.94x = 5,202,868,884.94
  5. Step 5: Solve for x
    x = 5,202,868,884.94/80,960.94
  6. Step 6: Final answer
    x = 64,263.94

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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.