Home / 83,835.27-115,642.08-51,575.40

Finding the Fourth Proportional to 83,835.27, 115,642.08 and 51,575.40

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Solution

The fourth proportional to 83,835.27, 115,642.08 and 51,575.40 is: 71,142.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,835.27 : 115,642.08 = 51,575.40 : x
  2. Step 2: Convert to fraction form
    83,835.27/115,642.08 = 51,575.40/x
  3. Step 3: Cross multiply
    83,835.27x = 115,642.08 × 51,575.40
  4. Step 4: Simplify right side
    83,835.27x = 5,964,286,532.83
  5. Step 5: Solve for x
    x = 5,964,286,532.83/83,835.27
  6. Step 6: Final answer
    x = 71,142.93

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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.