Home / 47,162.30-70,719.10-13,878.03

Finding the Fourth Proportional to 47,162.30, 70,719.10 and 13,878.03

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Solution

The fourth proportional to 47,162.30, 70,719.10 and 13,878.03 is: 20,809.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,162.30 : 70,719.10 = 13,878.03 : x
  2. Step 2: Convert to fraction form
    47,162.30/70,719.10 = 13,878.03/x
  3. Step 3: Cross multiply
    47,162.30x = 70,719.10 × 13,878.03
  4. Step 4: Simplify right side
    47,162.30x = 981,442,021.87
  5. Step 5: Solve for x
    x = 981,442,021.87/47,162.30
  6. Step 6: Final answer
    x = 20,809.89

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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.