Home / 90,633.11-135,969.10-38,012.27

Finding the Fourth Proportional to 90,633.11, 135,969.10 and 38,012.27

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Solution

The fourth proportional to 90,633.11, 135,969.10 and 38,012.27 is: 57,026.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,633.11 : 135,969.10 = 38,012.27 : x
  2. Step 2: Convert to fraction form
    90,633.11/135,969.10 = 38,012.27/x
  3. Step 3: Cross multiply
    90,633.11x = 135,969.10 × 38,012.27
  4. Step 4: Simplify right side
    90,633.11x = 5,168,493,365.98
  5. Step 5: Solve for x
    x = 5,168,493,365.98/90,633.11
  6. Step 6: Final answer
    x = 57,026.55

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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.