Home / 91,932.90-137,774.78-47,590.79

Finding the Fourth Proportional to 91,932.90, 137,774.78 and 47,590.79

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Solution

The fourth proportional to 91,932.90, 137,774.78 and 47,590.79 is: 71,321.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,932.90 : 137,774.78 = 47,590.79 : x
  2. Step 2: Convert to fraction form
    91,932.90/137,774.78 = 47,590.79/x
  3. Step 3: Cross multiply
    91,932.90x = 137,774.78 × 47,590.79
  4. Step 4: Simplify right side
    91,932.90x = 6,556,809,933.40
  5. Step 5: Solve for x
    x = 6,556,809,933.40/91,932.90
  6. Step 6: Final answer
    x = 71,321.69

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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.