Home / 91,987.26-137,865.47-39,334.83

Finding the Fourth Proportional to 91,987.26, 137,865.47 and 39,334.83

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Solution

The fourth proportional to 91,987.26, 137,865.47 and 39,334.83 is: 58,952.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,987.26 : 137,865.47 = 39,334.83 : x
  2. Step 2: Convert to fraction form
    91,987.26/137,865.47 = 39,334.83/x
  3. Step 3: Cross multiply
    91,987.26x = 137,865.47 × 39,334.83
  4. Step 4: Simplify right side
    91,987.26x = 5,422,914,628.65
  5. Step 5: Solve for x
    x = 5,422,914,628.65/91,987.26
  6. Step 6: Final answer
    x = 58,952.89

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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.