Home / 75,239.73-103,838.25-42,979.18

Finding the Fourth Proportional to 75,239.73, 103,838.25 and 42,979.18

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Solution

The fourth proportional to 75,239.73, 103,838.25 and 42,979.18 is: 59,315.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,239.73 : 103,838.25 = 42,979.18 : x
  2. Step 2: Convert to fraction form
    75,239.73/103,838.25 = 42,979.18/x
  3. Step 3: Cross multiply
    75,239.73x = 103,838.25 × 42,979.18
  4. Step 4: Simplify right side
    75,239.73x = 4,462,882,318.44
  5. Step 5: Solve for x
    x = 4,462,882,318.44/75,239.73
  6. Step 6: Final answer
    x = 59,315.50

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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.