Home / 55,339.82-76,385.31-38,578.22

Finding the Fourth Proportional to 55,339.82, 76,385.31 and 38,578.22

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Solution

The fourth proportional to 55,339.82, 76,385.31 and 38,578.22 is: 53,249.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,339.82 : 76,385.31 = 38,578.22 : x
  2. Step 2: Convert to fraction form
    55,339.82/76,385.31 = 38,578.22/x
  3. Step 3: Cross multiply
    55,339.82x = 76,385.31 × 38,578.22
  4. Step 4: Simplify right side
    55,339.82x = 2,946,809,293.95
  5. Step 5: Solve for x
    x = 2,946,809,293.95/55,339.82
  6. Step 6: Final answer
    x = 53,249.35

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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.