Home / 80,148.66-120,282.06-38,028.90

Finding the Fourth Proportional to 80,148.66, 120,282.06 and 38,028.90

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Solution

The fourth proportional to 80,148.66, 120,282.06 and 38,028.90 is: 57,071.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,148.66 : 120,282.06 = 38,028.90 : x
  2. Step 2: Convert to fraction form
    80,148.66/120,282.06 = 38,028.90/x
  3. Step 3: Cross multiply
    80,148.66x = 120,282.06 × 38,028.90
  4. Step 4: Simplify right side
    80,148.66x = 4,574,194,431.53
  5. Step 5: Solve for x
    x = 4,574,194,431.53/80,148.66
  6. Step 6: Final answer
    x = 57,071.38

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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.