Home / 90,402.01-135,592.60-36,364.66

Finding the Fourth Proportional to 90,402.01, 135,592.60 and 36,364.66

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Solution

The fourth proportional to 90,402.01, 135,592.60 and 36,364.66 is: 54,542.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,402.01 : 135,592.60 = 36,364.66 : x
  2. Step 2: Convert to fraction form
    90,402.01/135,592.60 = 36,364.66/x
  3. Step 3: Cross multiply
    90,402.01x = 135,592.60 × 36,364.66
  4. Step 4: Simplify right side
    90,402.01x = 4,930,779,198.51
  5. Step 5: Solve for x
    x = 4,930,779,198.51/90,402.01
  6. Step 6: Final answer
    x = 54,542.81

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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.