Home / 99,733.91-137,629.80-54,412.79

Finding the Fourth Proportional to 99,733.91, 137,629.80 and 54,412.79

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Solution

The fourth proportional to 99,733.91, 137,629.80 and 54,412.79 is: 75,088.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,733.91 : 137,629.80 = 54,412.79 : x
  2. Step 2: Convert to fraction form
    99,733.91/137,629.80 = 54,412.79/x
  3. Step 3: Cross multiply
    99,733.91x = 137,629.80 × 54,412.79
  4. Step 4: Simplify right side
    99,733.91x = 7,488,820,716.99
  5. Step 5: Solve for x
    x = 7,488,820,716.99/99,733.91
  6. Step 6: Final answer
    x = 75,088.01

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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.