Home / 76,741.90-115,107.48-28,701.37

Finding the Fourth Proportional to 76,741.90, 115,107.48 and 28,701.37

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Solution

The fourth proportional to 76,741.90, 115,107.48 and 28,701.37 is: 43,050.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,741.90 : 115,107.48 = 28,701.37 : x
  2. Step 2: Convert to fraction form
    76,741.90/115,107.48 = 28,701.37/x
  3. Step 3: Cross multiply
    76,741.90x = 115,107.48 × 28,701.37
  4. Step 4: Simplify right side
    76,741.90x = 3,303,742,517.13
  5. Step 5: Solve for x
    x = 3,303,742,517.13/76,741.90
  6. Step 6: Final answer
    x = 43,050.05

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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.