Home / 91,771.14-137,435.16-52,208.31

Finding the Fourth Proportional to 91,771.14, 137,435.16 and 52,208.31

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Solution

The fourth proportional to 91,771.14, 137,435.16 and 52,208.31 is: 78,186.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,771.14 : 137,435.16 = 52,208.31 : x
  2. Step 2: Convert to fraction form
    91,771.14/137,435.16 = 52,208.31/x
  3. Step 3: Cross multiply
    91,771.14x = 137,435.16 × 52,208.31
  4. Step 4: Simplify right side
    91,771.14x = 7,175,257,438.18
  5. Step 5: Solve for x
    x = 7,175,257,438.18/91,771.14
  6. Step 6: Final answer
    x = 78,186.43

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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.