Home / 76,775.95-115,109.37-29,351.06

Finding the Fourth Proportional to 76,775.95, 115,109.37 and 29,351.06

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Solution

The fourth proportional to 76,775.95, 115,109.37 and 29,351.06 is: 44,005.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,775.95 : 115,109.37 = 29,351.06 : x
  2. Step 2: Convert to fraction form
    76,775.95/115,109.37 = 29,351.06/x
  3. Step 3: Cross multiply
    76,775.95x = 115,109.37 × 29,351.06
  4. Step 4: Simplify right side
    76,775.95x = 3,378,581,881.55
  5. Step 5: Solve for x
    x = 3,378,581,881.55/76,775.95
  6. Step 6: Final answer
    x = 44,005.73

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1.5x scale

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.