Home / 90,381.30-124,733.57-50,107.70

Finding the Fourth Proportional to 90,381.30, 124,733.57 and 50,107.70

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Solution

The fourth proportional to 90,381.30, 124,733.57 and 50,107.70 is: 69,152.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,381.30 : 124,733.57 = 50,107.70 : x
  2. Step 2: Convert to fraction form
    90,381.30/124,733.57 = 50,107.70/x
  3. Step 3: Cross multiply
    90,381.30x = 124,733.57 × 50,107.70
  4. Step 4: Simplify right side
    90,381.30x = 6,250,111,431.28
  5. Step 5: Solve for x
    x = 6,250,111,431.28/90,381.30
  6. Step 6: Final answer
    x = 69,152.71

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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.