Home / 62,982.45-86,909.34-38,779.58

Finding the Fourth Proportional to 62,982.45, 86,909.34 and 38,779.58

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Solution

The fourth proportional to 62,982.45, 86,909.34 and 38,779.58 is: 53,511.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,982.45 : 86,909.34 = 38,779.58 : x
  2. Step 2: Convert to fraction form
    62,982.45/86,909.34 = 38,779.58/x
  3. Step 3: Cross multiply
    62,982.45x = 86,909.34 × 38,779.58
  4. Step 4: Simplify right side
    62,982.45x = 3,370,307,268.73
  5. Step 5: Solve for x
    x = 3,370,307,268.73/62,982.45
  6. Step 6: Final answer
    x = 53,511.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.