Home / 91,392.12-137,102.58-29,076.60

Finding the Fourth Proportional to 91,392.12, 137,102.58 and 29,076.60

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Solution

The fourth proportional to 91,392.12, 137,102.58 and 29,076.60 is: 43,619.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,392.12 : 137,102.58 = 29,076.60 : x
  2. Step 2: Convert to fraction form
    91,392.12/137,102.58 = 29,076.60/x
  3. Step 3: Cross multiply
    91,392.12x = 137,102.58 × 29,076.60
  4. Step 4: Simplify right side
    91,392.12x = 3,986,476,877.63
  5. Step 5: Solve for x
    x = 3,986,476,877.63/91,392.12
  6. Step 6: Final answer
    x = 43,619.48

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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.