Home / 75,123.61-103,664.67-43,295.06

Finding the Fourth Proportional to 75,123.61, 103,664.67 and 43,295.06

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Solution

The fourth proportional to 75,123.61, 103,664.67 and 43,295.06 is: 59,743.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,123.61 : 103,664.67 = 43,295.06 : x
  2. Step 2: Convert to fraction form
    75,123.61/103,664.67 = 43,295.06/x
  3. Step 3: Cross multiply
    75,123.61x = 103,664.67 × 43,295.06
  4. Step 4: Simplify right side
    75,123.61x = 4,488,168,107.53
  5. Step 5: Solve for x
    x = 4,488,168,107.53/75,123.61
  6. Step 6: Final answer
    x = 59,743.78

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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.