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Finding the Fourth Proportional to 90,327.96, 135,508.95 and 37,742.76

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Solution

The fourth proportional to 90,327.96, 135,508.95 and 37,742.76 is: 56,621.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,327.96 : 135,508.95 = 37,742.76 : x
  2. Step 2: Convert to fraction form
    90,327.96/135,508.95 = 37,742.76/x
  3. Step 3: Cross multiply
    90,327.96x = 135,508.95 × 37,742.76
  4. Step 4: Simplify right side
    90,327.96x = 5,114,481,777.70
  5. Step 5: Solve for x
    x = 5,114,481,777.70/90,327.96
  6. Step 6: Final answer
    x = 56,621.25

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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.