Home / 78,343.89-108,121.26-44,358.36

Finding the Fourth Proportional to 78,343.89, 108,121.26 and 44,358.36

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Solution

The fourth proportional to 78,343.89, 108,121.26 and 44,358.36 is: 61,218.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,343.89 : 108,121.26 = 44,358.36 : x
  2. Step 2: Convert to fraction form
    78,343.89/108,121.26 = 44,358.36/x
  3. Step 3: Cross multiply
    78,343.89x = 108,121.26 × 44,358.36
  4. Step 4: Simplify right side
    78,343.89x = 4,796,081,552.94
  5. Step 5: Solve for x
    x = 4,796,081,552.94/78,343.89
  6. Step 6: Final answer
    x = 61,218.33

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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.