Home / 47,141.64-70,761.66-20,864.85

Finding the Fourth Proportional to 47,141.64, 70,761.66 and 20,864.85

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Solution

The fourth proportional to 47,141.64, 70,761.66 and 20,864.85 is: 31,319.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,141.64 : 70,761.66 = 20,864.85 : x
  2. Step 2: Convert to fraction form
    47,141.64/70,761.66 = 20,864.85/x
  3. Step 3: Cross multiply
    47,141.64x = 70,761.66 × 20,864.85
  4. Step 4: Simplify right side
    47,141.64x = 1,476,431,421.65
  5. Step 5: Solve for x
    x = 1,476,431,421.65/47,141.64
  6. Step 6: Final answer
    x = 31,319.05

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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.