Home / 71,785.07-107,676.86-18,476.83

Finding the Fourth Proportional to 71,785.07, 107,676.86 and 18,476.83

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Solution

The fourth proportional to 71,785.07, 107,676.86 and 18,476.83 is: 27,715.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,785.07 : 107,676.86 = 18,476.83 : x
  2. Step 2: Convert to fraction form
    71,785.07/107,676.86 = 18,476.83/x
  3. Step 3: Cross multiply
    71,785.07x = 107,676.86 × 18,476.83
  4. Step 4: Simplify right side
    71,785.07x = 1,989,527,037.15
  5. Step 5: Solve for x
    x = 1,989,527,037.15/71,785.07
  6. Step 6: Final answer
    x = 27,715.05

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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.