Home / 80,639.19-111,284.94-44,343.39

Finding the Fourth Proportional to 80,639.19, 111,284.94 and 44,343.39

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Solution

The fourth proportional to 80,639.19, 111,284.94 and 44,343.39 is: 61,195.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,639.19 : 111,284.94 = 44,343.39 : x
  2. Step 2: Convert to fraction form
    80,639.19/111,284.94 = 44,343.39/x
  3. Step 3: Cross multiply
    80,639.19x = 111,284.94 × 44,343.39
  4. Step 4: Simplify right side
    80,639.19x = 4,934,751,495.55
  5. Step 5: Solve for x
    x = 4,934,751,495.55/80,639.19
  6. Step 6: Final answer
    x = 61,195.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.