Home / 80,902.35-121,258.21-36,477.09

Finding the Fourth Proportional to 80,902.35, 121,258.21 and 36,477.09

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Solution

The fourth proportional to 80,902.35, 121,258.21 and 36,477.09 is: 54,672.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,902.35 : 121,258.21 = 36,477.09 : x
  2. Step 2: Convert to fraction form
    80,902.35/121,258.21 = 36,477.09/x
  3. Step 3: Cross multiply
    80,902.35x = 121,258.21 × 36,477.09
  4. Step 4: Simplify right side
    80,902.35x = 4,423,146,639.41
  5. Step 5: Solve for x
    x = 4,423,146,639.41/80,902.35
  6. Step 6: Final answer
    x = 54,672.66

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.