Home / 83,135.52-124,752.96-30,550.32

Finding the Fourth Proportional to 83,135.52, 124,752.96 and 30,550.32

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Solution

The fourth proportional to 83,135.52, 124,752.96 and 30,550.32 is: 45,843.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,135.52 : 124,752.96 = 30,550.32 : x
  2. Step 2: Convert to fraction form
    83,135.52/124,752.96 = 30,550.32/x
  3. Step 3: Cross multiply
    83,135.52x = 124,752.96 × 30,550.32
  4. Step 4: Simplify right side
    83,135.52x = 3,811,242,848.95
  5. Step 5: Solve for x
    x = 3,811,242,848.95/83,135.52
  6. Step 6: Final answer
    x = 45,843.74

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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.