Home / 80,577.36-120,976.07-55,555.65

Finding the Fourth Proportional to 80,577.36, 120,976.07 and 55,555.65

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Solution

The fourth proportional to 80,577.36, 120,976.07 and 55,555.65 is: 83,409.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,577.36 : 120,976.07 = 55,555.65 : x
  2. Step 2: Convert to fraction form
    80,577.36/120,976.07 = 55,555.65/x
  3. Step 3: Cross multiply
    80,577.36x = 120,976.07 × 55,555.65
  4. Step 4: Simplify right side
    80,577.36x = 6,720,903,925.52
  5. Step 5: Solve for x
    x = 6,720,903,925.52/80,577.36
  6. Step 6: Final answer
    x = 83,409.33

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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.