Home / 80,110.33-120,237.72-42,701.56

Finding the Fourth Proportional to 80,110.33, 120,237.72 and 42,701.56

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Solution

The fourth proportional to 80,110.33, 120,237.72 and 42,701.56 is: 64,090.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,110.33 : 120,237.72 = 42,701.56 : x
  2. Step 2: Convert to fraction form
    80,110.33/120,237.72 = 42,701.56/x
  3. Step 3: Cross multiply
    80,110.33x = 120,237.72 × 42,701.56
  4. Step 4: Simplify right side
    80,110.33x = 5,134,338,214.84
  5. Step 5: Solve for x
    x = 5,134,338,214.84/80,110.33
  6. Step 6: Final answer
    x = 64,090.84

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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.