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Finding the Fourth Proportional to 90,374.40, 135,537.30 and 27,194.40

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Solution

The fourth proportional to 90,374.40, 135,537.30 and 27,194.40 is: 40,784.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,374.40 : 135,537.30 = 27,194.40 : x
  2. Step 2: Convert to fraction form
    90,374.40/135,537.30 = 27,194.40/x
  3. Step 3: Cross multiply
    90,374.40x = 135,537.30 × 27,194.40
  4. Step 4: Simplify right side
    90,374.40x = 3,685,855,551.12
  5. Step 5: Solve for x
    x = 3,685,855,551.12/90,374.40
  6. Step 6: Final answer
    x = 40,784.29

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1.5x scale

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.