Home / 90,121.11-124,364.65-49,833.53

Finding the Fourth Proportional to 90,121.11, 124,364.65 and 49,833.53

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Solution

The fourth proportional to 90,121.11, 124,364.65 and 49,833.53 is: 68,768.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,121.11 : 124,364.65 = 49,833.53 : x
  2. Step 2: Convert to fraction form
    90,121.11/124,364.65 = 49,833.53/x
  3. Step 3: Cross multiply
    90,121.11x = 124,364.65 × 49,833.53
  4. Step 4: Simplify right side
    90,121.11x = 6,197,529,516.71
  5. Step 5: Solve for x
    x = 6,197,529,516.71/90,121.11
  6. Step 6: Final answer
    x = 68,768.90

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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.