Home / 75,286.68-103,897.71-43,457.28

Finding the Fourth Proportional to 75,286.68, 103,897.71 and 43,457.28

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Solution

The fourth proportional to 75,286.68, 103,897.71 and 43,457.28 is: 59,972.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,286.68 : 103,897.71 = 43,457.28 : x
  2. Step 2: Convert to fraction form
    75,286.68/103,897.71 = 43,457.28/x
  3. Step 3: Cross multiply
    75,286.68x = 103,897.71 × 43,457.28
  4. Step 4: Simplify right side
    75,286.68x = 4,515,111,874.83
  5. Step 5: Solve for x
    x = 4,515,111,874.83/75,286.68
  6. Step 6: Final answer
    x = 59,972.25

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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.