Home / 61,081.90-91,418.70-34,779.58

Finding the Fourth Proportional to 61,081.90, 91,418.70 and 34,779.58

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Solution

The fourth proportional to 61,081.90, 91,418.70 and 34,779.58 is: 52,053.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,081.90 : 91,418.70 = 34,779.58 : x
  2. Step 2: Convert to fraction form
    61,081.90/91,418.70 = 34,779.58/x
  3. Step 3: Cross multiply
    61,081.90x = 91,418.70 × 34,779.58
  4. Step 4: Simplify right side
    61,081.90x = 3,179,503,990.15
  5. Step 5: Solve for x
    x = 3,179,503,990.15/61,081.90
  6. Step 6: Final answer
    x = 52,053.13

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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.