Home / 55,830.87-83,751.77-18,375.66

Finding the Fourth Proportional to 55,830.87, 83,751.77 and 18,375.66

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Solution

The fourth proportional to 55,830.87, 83,751.77 and 18,375.66 is: 27,565.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,830.87 : 83,751.77 = 18,375.66 : x
  2. Step 2: Convert to fraction form
    55,830.87/83,751.77 = 18,375.66/x
  3. Step 3: Cross multiply
    55,830.87x = 83,751.77 × 18,375.66
  4. Step 4: Simplify right side
    55,830.87x = 1,538,994,095.86
  5. Step 5: Solve for x
    x = 1,538,994,095.86/55,830.87
  6. Step 6: Final answer
    x = 27,565.29

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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.