Home / 91,371.84-137,023.20-38,806.08

Finding the Fourth Proportional to 91,371.84, 137,023.20 and 38,806.08

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Solution

The fourth proportional to 91,371.84, 137,023.20 and 38,806.08 is: 58,194.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,371.84 : 137,023.20 = 38,806.08 : x
  2. Step 2: Convert to fraction form
    91,371.84/137,023.20 = 38,806.08/x
  3. Step 3: Cross multiply
    91,371.84x = 137,023.20 × 38,806.08
  4. Step 4: Simplify right side
    91,371.84x = 5,317,333,261.06
  5. Step 5: Solve for x
    x = 5,317,333,261.06/91,371.84
  6. Step 6: Final answer
    x = 58,194.44

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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.