Home / 99,331.84-137,080.96-54,621.44

Finding the Fourth Proportional to 99,331.84, 137,080.96 and 54,621.44

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Solution

The fourth proportional to 99,331.84, 137,080.96 and 54,621.44 is: 75,379.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,331.84 : 137,080.96 = 54,621.44 : x
  2. Step 2: Convert to fraction form
    99,331.84/137,080.96 = 54,621.44/x
  3. Step 3: Cross multiply
    99,331.84x = 137,080.96 × 54,621.44
  4. Step 4: Simplify right side
    99,331.84x = 7,487,559,431.78
  5. Step 5: Solve for x
    x = 7,487,559,431.78/99,331.84
  6. Step 6: Final answer
    x = 75,379.25

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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.