Home / 75,669.31-104,422.12-47,390.59

Finding the Fourth Proportional to 75,669.31, 104,422.12 and 47,390.59

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Solution

The fourth proportional to 75,669.31, 104,422.12 and 47,390.59 is: 65,398.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,669.31 : 104,422.12 = 47,390.59 : x
  2. Step 2: Convert to fraction form
    75,669.31/104,422.12 = 47,390.59/x
  3. Step 3: Cross multiply
    75,669.31x = 104,422.12 × 47,390.59
  4. Step 4: Simplify right side
    75,669.31x = 4,948,625,875.85
  5. Step 5: Solve for x
    x = 4,948,625,875.85/75,669.31
  6. Step 6: Final answer
    x = 65,398.06

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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.