Home / 70,434.32-105,650.68-17,126.60

Finding the Fourth Proportional to 70,434.32, 105,650.68 and 17,126.60

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Solution

The fourth proportional to 70,434.32, 105,650.68 and 17,126.60 is: 25,689.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,434.32 : 105,650.68 = 17,126.60 : x
  2. Step 2: Convert to fraction form
    70,434.32/105,650.68 = 17,126.60/x
  3. Step 3: Cross multiply
    70,434.32x = 105,650.68 × 17,126.60
  4. Step 4: Simplify right side
    70,434.32x = 1,809,436,936.09
  5. Step 5: Solve for x
    x = 1,809,436,936.09/70,434.32
  6. Step 6: Final answer
    x = 25,689.71

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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.