Home / 90,380.34-124,709.22-52,131.33

Finding the Fourth Proportional to 90,380.34, 124,709.22 and 52,131.33

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Solution

The fourth proportional to 90,380.34, 124,709.22 and 52,131.33 is: 71,932.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,380.34 : 124,709.22 = 52,131.33 : x
  2. Step 2: Convert to fraction form
    90,380.34/124,709.22 = 52,131.33/x
  3. Step 3: Cross multiply
    90,380.34x = 124,709.22 × 52,131.33
  4. Step 4: Simplify right side
    90,380.34x = 6,501,257,501.86
  5. Step 5: Solve for x
    x = 6,501,257,501.86/90,380.34
  6. Step 6: Final answer
    x = 71,932.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.