Home / 47,973.45-71,991.31-21,678.42

Finding the Fourth Proportional to 47,973.45, 71,991.31 and 21,678.42

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Solution

The fourth proportional to 47,973.45, 71,991.31 and 21,678.42 is: 32,531.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,973.45 : 71,991.31 = 21,678.42 : x
  2. Step 2: Convert to fraction form
    47,973.45/71,991.31 = 21,678.42/x
  3. Step 3: Cross multiply
    47,973.45x = 71,991.31 × 21,678.42
  4. Step 4: Simplify right side
    47,973.45x = 1,560,657,854.53
  5. Step 5: Solve for x
    x = 1,560,657,854.53/47,973.45
  6. Step 6: Final answer
    x = 32,531.70

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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.