Home / 78,166.80-107,902.44-55,841.04

Finding the Fourth Proportional to 78,166.80, 107,902.44 and 55,841.04

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Solution

The fourth proportional to 78,166.80, 107,902.44 and 55,841.04 is: 77,083.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,166.80 : 107,902.44 = 55,841.04 : x
  2. Step 2: Convert to fraction form
    78,166.80/107,902.44 = 55,841.04/x
  3. Step 3: Cross multiply
    78,166.80x = 107,902.44 × 55,841.04
  4. Step 4: Simplify right side
    78,166.80x = 6,025,384,468.14
  5. Step 5: Solve for x
    x = 6,025,384,468.14/78,166.80
  6. Step 6: Final answer
    x = 77,083.68

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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.