Home / 91,825.63-137,760.55-38,488.34

Finding the Fourth Proportional to 91,825.63, 137,760.55 and 38,488.34

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Solution

The fourth proportional to 91,825.63, 137,760.55 and 38,488.34 is: 57,741.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,825.63 : 137,760.55 = 38,488.34 : x
  2. Step 2: Convert to fraction form
    91,825.63/137,760.55 = 38,488.34/x
  3. Step 3: Cross multiply
    91,825.63x = 137,760.55 × 38,488.34
  4. Step 4: Simplify right side
    91,825.63x = 5,302,175,135.17
  5. Step 5: Solve for x
    x = 5,302,175,135.17/91,825.63
  6. Step 6: Final answer
    x = 57,741.78

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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.