Home / 99,727.92-137,624.52-57,286.44

Finding the Fourth Proportional to 99,727.92, 137,624.52 and 57,286.44

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Solution

The fourth proportional to 99,727.92, 137,624.52 and 57,286.44 is: 79,055.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,727.92 : 137,624.52 = 57,286.44 : x
  2. Step 2: Convert to fraction form
    99,727.92/137,624.52 = 57,286.44/x
  3. Step 3: Cross multiply
    99,727.92x = 137,624.52 × 57,286.44
  4. Step 4: Simplify right side
    99,727.92x = 7,884,018,807.51
  5. Step 5: Solve for x
    x = 7,884,018,807.51/99,727.92
  6. Step 6: Final answer
    x = 79,055.28

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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.