Home / 52,931.55-79,336.92-21,321.36

Finding the Fourth Proportional to 52,931.55, 79,336.92 and 21,321.36

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Solution

The fourth proportional to 52,931.55, 79,336.92 and 21,321.36 is: 31,957.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,931.55 : 79,336.92 = 21,321.36 : x
  2. Step 2: Convert to fraction form
    52,931.55/79,336.92 = 21,321.36/x
  3. Step 3: Cross multiply
    52,931.55x = 79,336.92 × 21,321.36
  4. Step 4: Simplify right side
    52,931.55x = 1,691,571,032.61
  5. Step 5: Solve for x
    x = 1,691,571,032.61/52,931.55
  6. Step 6: Final answer
    x = 31,957.71

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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.