Home / 66,933.14-100,350.50-31,897.40

Finding the Fourth Proportional to 66,933.14, 100,350.50 and 31,897.40

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Solution

The fourth proportional to 66,933.14, 100,350.50 and 31,897.40 is: 47,822.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,933.14 : 100,350.50 = 31,897.40 : x
  2. Step 2: Convert to fraction form
    66,933.14/100,350.50 = 31,897.40/x
  3. Step 3: Cross multiply
    66,933.14x = 100,350.50 × 31,897.40
  4. Step 4: Simplify right side
    66,933.14x = 3,200,919,377.46
  5. Step 5: Solve for x
    x = 3,200,919,377.46/66,933.14
  6. Step 6: Final answer
    x = 47,822.64

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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.