Home / 77,015.80-115,329.30-50,577.40

Finding the Fourth Proportional to 77,015.80, 115,329.30 and 50,577.40

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Solution

The fourth proportional to 77,015.80, 115,329.30 and 50,577.40 is: 75,738.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,015.80 : 115,329.30 = 50,577.40 : x
  2. Step 2: Convert to fraction form
    77,015.80/115,329.30 = 50,577.40/x
  3. Step 3: Cross multiply
    77,015.80x = 115,329.30 × 50,577.40
  4. Step 4: Simplify right side
    77,015.80x = 5,833,056,137.82
  5. Step 5: Solve for x
    x = 5,833,056,137.82/77,015.80
  6. Step 6: Final answer
    x = 75,738.43

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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.