Home / 90,135.27-135,206.01-30,970.44

Finding the Fourth Proportional to 90,135.27, 135,206.01 and 30,970.44

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Solution

The fourth proportional to 90,135.27, 135,206.01 and 30,970.44 is: 46,456.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,135.27 : 135,206.01 = 30,970.44 : x
  2. Step 2: Convert to fraction form
    90,135.27/135,206.01 = 30,970.44/x
  3. Step 3: Cross multiply
    90,135.27x = 135,206.01 × 30,970.44
  4. Step 4: Simplify right side
    90,135.27x = 4,187,389,620.34
  5. Step 5: Solve for x
    x = 4,187,389,620.34/90,135.27
  6. Step 6: Final answer
    x = 46,456.73

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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.