Home / 78,009.45-117,206.75-49,941.73

Finding the Fourth Proportional to 78,009.45, 117,206.75 and 49,941.73

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Solution

The fourth proportional to 78,009.45, 117,206.75 and 49,941.73 is: 75,035.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,009.45 : 117,206.75 = 49,941.73 : x
  2. Step 2: Convert to fraction form
    78,009.45/117,206.75 = 49,941.73/x
  3. Step 3: Cross multiply
    78,009.45x = 117,206.75 × 49,941.73
  4. Step 4: Simplify right side
    78,009.45x = 5,853,507,862.68
  5. Step 5: Solve for x
    x = 5,853,507,862.68/78,009.45
  6. Step 6: Final answer
    x = 75,035.88

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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.