Home / 76,946.88-115,456.87-53,290.83

Finding the Fourth Proportional to 76,946.88, 115,456.87 and 53,290.83

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Solution

The fourth proportional to 76,946.88, 115,456.87 and 53,290.83 is: 79,961.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,946.88 : 115,456.87 = 53,290.83 : x
  2. Step 2: Convert to fraction form
    76,946.88/115,456.87 = 53,290.83/x
  3. Step 3: Cross multiply
    76,946.88x = 115,456.87 × 53,290.83
  4. Step 4: Simplify right side
    76,946.88x = 6,152,791,865.31
  5. Step 5: Solve for x
    x = 6,152,791,865.31/76,946.88
  6. Step 6: Final answer
    x = 79,961.55

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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.