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Finding the Fourth Proportional to 90,242.32, 135,392.64 and 37,666.84

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Solution

The fourth proportional to 90,242.32, 135,392.64 and 37,666.84 is: 56,512.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,242.32 : 135,392.64 = 37,666.84 : x
  2. Step 2: Convert to fraction form
    90,242.32/135,392.64 = 37,666.84/x
  3. Step 3: Cross multiply
    90,242.32x = 135,392.64 × 37,666.84
  4. Step 4: Simplify right side
    90,242.32x = 5,099,812,908.06
  5. Step 5: Solve for x
    x = 5,099,812,908.06/90,242.32
  6. Step 6: Final answer
    x = 56,512.43

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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.