Home / 83,935.42-115,880.16-52,121.86

Finding the Fourth Proportional to 83,935.42, 115,880.16 and 52,121.86

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Solution

The fourth proportional to 83,935.42, 115,880.16 and 52,121.86 is: 71,958.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,935.42 : 115,880.16 = 52,121.86 : x
  2. Step 2: Convert to fraction form
    83,935.42/115,880.16 = 52,121.86/x
  3. Step 3: Cross multiply
    83,935.42x = 115,880.16 × 52,121.86
  4. Step 4: Simplify right side
    83,935.42x = 6,039,889,476.30
  5. Step 5: Solve for x
    x = 6,039,889,476.30/83,935.42
  6. Step 6: Final answer
    x = 71,958.77

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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.