Home / 75,312.47-103,930.53-41,320.31

Finding the Fourth Proportional to 75,312.47, 103,930.53 and 41,320.31

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Solution

The fourth proportional to 75,312.47, 103,930.53 and 41,320.31 is: 57,021.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,312.47 : 103,930.53 = 41,320.31 : x
  2. Step 2: Convert to fraction form
    75,312.47/103,930.53 = 41,320.31/x
  3. Step 3: Cross multiply
    75,312.47x = 103,930.53 × 41,320.31
  4. Step 4: Simplify right side
    75,312.47x = 4,294,441,198.41
  5. Step 5: Solve for x
    x = 4,294,441,198.41/75,312.47
  6. Step 6: Final answer
    x = 57,021.65

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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.