Home / 77,557.03-116,336-27,639.05

Finding the Fourth Proportional to 77,557.03, 116,336 and 27,639.05

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Solution

The fourth proportional to 77,557.03, 116,336 and 27,639.05 is: 41,458.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,557.03 : 116,336 = 27,639.05 : x
  2. Step 2: Convert to fraction form
    77,557.03/116,336 = 27,639.05/x
  3. Step 3: Cross multiply
    77,557.03x = 116,336 × 27,639.05
  4. Step 4: Simplify right side
    77,557.03x = 3,215,416,520.80
  5. Step 5: Solve for x
    x = 3,215,416,520.80/77,557.03
  6. Step 6: Final answer
    x = 41,458.74

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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.