Home / 55,118.10-82,531.35-43,356.90

Finding the Fourth Proportional to 55,118.10, 82,531.35 and 43,356.90

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Solution

The fourth proportional to 55,118.10, 82,531.35 and 43,356.90 is: 64,920.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,118.10 : 82,531.35 = 43,356.90 : x
  2. Step 2: Convert to fraction form
    55,118.10/82,531.35 = 43,356.90/x
  3. Step 3: Cross multiply
    55,118.10x = 82,531.35 × 43,356.90
  4. Step 4: Simplify right side
    55,118.10x = 3,578,303,488.82
  5. Step 5: Solve for x
    x = 3,578,303,488.82/55,118.10
  6. Step 6: Final answer
    x = 64,920.66

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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.