Home / 61,080.90-91,417.20-34,778.58

Finding the Fourth Proportional to 61,080.90, 91,417.20 and 34,778.58

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Solution

The fourth proportional to 61,080.90, 91,417.20 and 34,778.58 is: 52,051.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,080.90 : 91,417.20 = 34,778.58 : x
  2. Step 2: Convert to fraction form
    61,080.90/91,417.20 = 34,778.58/x
  3. Step 3: Cross multiply
    61,080.90x = 91,417.20 × 34,778.58
  4. Step 4: Simplify right side
    61,080.90x = 3,179,360,403.58
  5. Step 5: Solve for x
    x = 3,179,360,403.58/61,080.90
  6. Step 6: Final answer
    x = 52,051.63

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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.