Home / 47,998.10-66,222.56-31,011.80

Finding the Fourth Proportional to 47,998.10, 66,222.56 and 31,011.80

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Solution

The fourth proportional to 47,998.10, 66,222.56 and 31,011.80 is: 42,786.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,998.10 : 66,222.56 = 31,011.80 : x
  2. Step 2: Convert to fraction form
    47,998.10/66,222.56 = 31,011.80/x
  3. Step 3: Cross multiply
    47,998.10x = 66,222.56 × 31,011.80
  4. Step 4: Simplify right side
    47,998.10x = 2,053,680,786.21
  5. Step 5: Solve for x
    x = 2,053,680,786.21/47,998.10
  6. Step 6: Final answer
    x = 42,786.71

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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.