Home / 80,123.06-120,015.07-51,959.45

Finding the Fourth Proportional to 80,123.06, 120,015.07 and 51,959.45

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Solution

The fourth proportional to 80,123.06, 120,015.07 and 51,959.45 is: 77,829.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,123.06 : 120,015.07 = 51,959.45 : x
  2. Step 2: Convert to fraction form
    80,123.06/120,015.07 = 51,959.45/x
  3. Step 3: Cross multiply
    80,123.06x = 120,015.07 × 51,959.45
  4. Step 4: Simplify right side
    80,123.06x = 6,235,917,199.05
  5. Step 5: Solve for x
    x = 6,235,917,199.05/80,123.06
  6. Step 6: Final answer
    x = 77,829.24

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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.