Home / 76,937.88-115,103.16-58,271.70

Finding the Fourth Proportional to 76,937.88, 115,103.16 and 58,271.70

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Solution

The fourth proportional to 76,937.88, 115,103.16 and 58,271.70 is: 87,177.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,937.88 : 115,103.16 = 58,271.70 : x
  2. Step 2: Convert to fraction form
    76,937.88/115,103.16 = 58,271.70/x
  3. Step 3: Cross multiply
    76,937.88x = 115,103.16 × 58,271.70
  4. Step 4: Simplify right side
    76,937.88x = 6,707,256,808.57
  5. Step 5: Solve for x
    x = 6,707,256,808.57/76,937.88
  6. Step 6: Final answer
    x = 87,177.56

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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.