Home / 91,731.84-137,588.52-25,178.68

Finding the Fourth Proportional to 91,731.84, 137,588.52 and 25,178.68

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Solution

The fourth proportional to 91,731.84, 137,588.52 and 25,178.68 is: 37,765.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,731.84 : 137,588.52 = 25,178.68 : x
  2. Step 2: Convert to fraction form
    91,731.84/137,588.52 = 25,178.68/x
  3. Step 3: Cross multiply
    91,731.84x = 137,588.52 × 25,178.68
  4. Step 4: Simplify right side
    91,731.84x = 3,464,297,316.75
  5. Step 5: Solve for x
    x = 3,464,297,316.75/91,731.84
  6. Step 6: Final answer
    x = 37,765.48

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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.