Home / 75,669.44-104,422.29-47,390.72

Finding the Fourth Proportional to 75,669.44, 104,422.29 and 47,390.72

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Solution

The fourth proportional to 75,669.44, 104,422.29 and 47,390.72 is: 65,398.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,669.44 : 104,422.29 = 47,390.72 : x
  2. Step 2: Convert to fraction form
    75,669.44/104,422.29 = 47,390.72/x
  3. Step 3: Cross multiply
    75,669.44x = 104,422.29 × 47,390.72
  4. Step 4: Simplify right side
    75,669.44x = 4,948,646,985.04
  5. Step 5: Solve for x
    x = 4,948,646,985.04/75,669.44
  6. Step 6: Final answer
    x = 65,398.23

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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.