Home / 66,308.20-99,494.70-31,241.80

Finding the Fourth Proportional to 66,308.20, 99,494.70 and 31,241.80

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Solution

The fourth proportional to 66,308.20, 99,494.70 and 31,241.80 is: 46,877.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,308.20 : 99,494.70 = 31,241.80 : x
  2. Step 2: Convert to fraction form
    66,308.20/99,494.70 = 31,241.80/x
  3. Step 3: Cross multiply
    66,308.20x = 99,494.70 × 31,241.80
  4. Step 4: Simplify right side
    66,308.20x = 3,108,393,518.46
  5. Step 5: Solve for x
    x = 3,108,393,518.46/66,308.20
  6. Step 6: Final answer
    x = 46,877.97

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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.