Home / 91,396.31-137,044.22-28,199.18

Finding the Fourth Proportional to 91,396.31, 137,044.22 and 28,199.18

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Solution

The fourth proportional to 91,396.31, 137,044.22 and 28,199.18 is: 42,283.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,396.31 : 137,044.22 = 28,199.18 : x
  2. Step 2: Convert to fraction form
    91,396.31/137,044.22 = 28,199.18/x
  3. Step 3: Cross multiply
    91,396.31x = 137,044.22 × 28,199.18
  4. Step 4: Simplify right side
    91,396.31x = 3,864,534,829.35
  5. Step 5: Solve for x
    x = 3,864,534,829.35/91,396.31
  6. Step 6: Final answer
    x = 42,283.27

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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.