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Finding the Fourth Proportional to 90,602.32, 135,932.64 and 37,997.68

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Solution

The fourth proportional to 90,602.32, 135,932.64 and 37,997.68 is: 57,008.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,602.32 : 135,932.64 = 37,997.68 : x
  2. Step 2: Convert to fraction form
    90,602.32/135,932.64 = 37,997.68/x
  3. Step 3: Cross multiply
    90,602.32x = 135,932.64 × 37,997.68
  4. Step 4: Simplify right side
    90,602.32x = 5,165,124,956.28
  5. Step 5: Solve for x
    x = 5,165,124,956.28/90,602.32
  6. Step 6: Final answer
    x = 57,008.75

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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.