Home / 75,076.39-103,642.95-43,239.16

Finding the Fourth Proportional to 75,076.39, 103,642.95 and 43,239.16

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Solution

The fourth proportional to 75,076.39, 103,642.95 and 43,239.16 is: 59,691.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,076.39 : 103,642.95 = 43,239.16 : x
  2. Step 2: Convert to fraction form
    75,076.39/103,642.95 = 43,239.16/x
  3. Step 3: Cross multiply
    75,076.39x = 103,642.95 × 43,239.16
  4. Step 4: Simplify right side
    75,076.39x = 4,481,434,097.92
  5. Step 5: Solve for x
    x = 4,481,434,097.92/75,076.39
  6. Step 6: Final answer
    x = 59,691.66

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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.