Home / 61,418.80-91,998.60-54,852.40

Finding the Fourth Proportional to 61,418.80, 91,998.60 and 54,852.40

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Solution

The fourth proportional to 61,418.80, 91,998.60 and 54,852.40 is: 82,162.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,418.80 : 91,998.60 = 54,852.40 : x
  2. Step 2: Convert to fraction form
    61,418.80/91,998.60 = 54,852.40/x
  3. Step 3: Cross multiply
    61,418.80x = 91,998.60 × 54,852.40
  4. Step 4: Simplify right side
    61,418.80x = 5,046,344,006.64
  5. Step 5: Solve for x
    x = 5,046,344,006.64/61,418.80
  6. Step 6: Final answer
    x = 82,162.86

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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.