Home / 90,936.90-136,429.99-34,747.40

Finding the Fourth Proportional to 90,936.90, 136,429.99 and 34,747.40

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Solution

The fourth proportional to 90,936.90, 136,429.99 and 34,747.40 is: 52,130.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,936.90 : 136,429.99 = 34,747.40 : x
  2. Step 2: Convert to fraction form
    90,936.90/136,429.99 = 34,747.40/x
  3. Step 3: Cross multiply
    90,936.90x = 136,429.99 × 34,747.40
  4. Step 4: Simplify right side
    90,936.90x = 4,740,587,688.73
  5. Step 5: Solve for x
    x = 4,740,587,688.73/90,936.90
  6. Step 6: Final answer
    x = 52,130.52

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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.