Home / 75,320.47-103,938.77-41,328.11

Finding the Fourth Proportional to 75,320.47, 103,938.77 and 41,328.11

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Solution

The fourth proportional to 75,320.47, 103,938.77 and 41,328.11 is: 57,030.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,320.47 : 103,938.77 = 41,328.11 : x
  2. Step 2: Convert to fraction form
    75,320.47/103,938.77 = 41,328.11/x
  3. Step 3: Cross multiply
    75,320.47x = 103,938.77 × 41,328.11
  4. Step 4: Simplify right side
    75,320.47x = 4,295,592,919.82
  5. Step 5: Solve for x
    x = 4,295,592,919.82/75,320.47
  6. Step 6: Final answer
    x = 57,030.88

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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.