Home / 55,278,942.75-76,284,726.35-30,500,671.77

Finding the Fourth Proportional to 55,278,942.75, 76,284,726.35 and 30,500,671.77

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Solution

The fourth proportional to 55,278,942.75, 76,284,726.35 and 30,500,671.77 is: 42,090,808.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,278,942.75 : 76,284,726.35 = 30,500,671.77 : x
  2. Step 2: Convert to fraction form
    55,278,942.75/76,284,726.35 = 30,500,671.77/x
  3. Step 3: Cross multiply
    55,278,942.75x = 76,284,726.35 × 30,500,671.77
  4. Step 4: Simplify right side
    55,278,942.75x = 2,326,735,399,313,116.50
  5. Step 5: Solve for x
    x = 2,326,735,399,313,116.50/55,278,942.75
  6. Step 6: Final answer
    x = 42,090,808.61

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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.