Home / 90,890.11-136,357.27-30,922.57

Finding the Fourth Proportional to 90,890.11, 136,357.27 and 30,922.57

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Solution

The fourth proportional to 90,890.11, 136,357.27 and 30,922.57 is: 46,391.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,890.11 : 136,357.27 = 30,922.57 : x
  2. Step 2: Convert to fraction form
    90,890.11/136,357.27 = 30,922.57/x
  3. Step 3: Cross multiply
    90,890.11x = 136,357.27 × 30,922.57
  4. Step 4: Simplify right side
    90,890.11x = 4,216,517,226.58
  5. Step 5: Solve for x
    x = 4,216,517,226.58/90,890.11
  6. Step 6: Final answer
    x = 46,391.38

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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.