Home / 92,862.22-128,161.19-54,619.94

Finding the Fourth Proportional to 92,862.22, 128,161.19 and 54,619.94

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Solution

The fourth proportional to 92,862.22, 128,161.19 and 54,619.94 is: 75,382.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,862.22 : 128,161.19 = 54,619.94 : x
  2. Step 2: Convert to fraction form
    92,862.22/128,161.19 = 54,619.94/x
  3. Step 3: Cross multiply
    92,862.22x = 128,161.19 × 54,619.94
  4. Step 4: Simplify right side
    92,862.22x = 7,000,156,371.58
  5. Step 5: Solve for x
    x = 7,000,156,371.58/92,862.22
  6. Step 6: Final answer
    x = 75,382.18

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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.