Home / 99,709.32-137,589.30-54,994.44

Finding the Fourth Proportional to 99,709.32, 137,589.30 and 54,994.44

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Solution

The fourth proportional to 99,709.32, 137,589.30 and 54,994.44 is: 75,887.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,709.32 : 137,589.30 = 54,994.44 : x
  2. Step 2: Convert to fraction form
    99,709.32/137,589.30 = 54,994.44/x
  3. Step 3: Cross multiply
    99,709.32x = 137,589.30 × 54,994.44
  4. Step 4: Simplify right side
    99,709.32x = 7,566,646,503.49
  5. Step 5: Solve for x
    x = 7,566,646,503.49/99,709.32
  6. Step 6: Final answer
    x = 75,887.05

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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.