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Finding the Fourth Proportional to 90,298.39, 135,452.45 and 37,654.87

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Solution

The fourth proportional to 90,298.39, 135,452.45 and 37,654.87 is: 56,484.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,298.39 : 135,452.45 = 37,654.87 : x
  2. Step 2: Convert to fraction form
    90,298.39/135,452.45 = 37,654.87/x
  3. Step 3: Cross multiply
    90,298.39x = 135,452.45 × 37,654.87
  4. Step 4: Simplify right side
    90,298.39x = 5,100,444,395.93
  5. Step 5: Solve for x
    x = 5,100,444,395.93/90,298.39
  6. Step 6: Final answer
    x = 56,484.33

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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.