Home / 55,775.25-76,969.30-30,281.85

Finding the Fourth Proportional to 55,775.25, 76,969.30 and 30,281.85

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Solution

The fourth proportional to 55,775.25, 76,969.30 and 30,281.85 is: 41,788.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,775.25 : 76,969.30 = 30,281.85 : x
  2. Step 2: Convert to fraction form
    55,775.25/76,969.30 = 30,281.85/x
  3. Step 3: Cross multiply
    55,775.25x = 76,969.30 × 30,281.85
  4. Step 4: Simplify right side
    55,775.25x = 2,330,773,010.14
  5. Step 5: Solve for x
    x = 2,330,773,010.14/55,775.25
  6. Step 6: Final answer
    x = 41,788.66

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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.