Home / 67,317.13-100,973.31-31,765.47

Finding the Fourth Proportional to 67,317.13, 100,973.31 and 31,765.47

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Solution

The fourth proportional to 67,317.13, 100,973.31 and 31,765.47 is: 47,647.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,317.13 : 100,973.31 = 31,765.47 : x
  2. Step 2: Convert to fraction form
    67,317.13/100,973.31 = 31,765.47/x
  3. Step 3: Cross multiply
    67,317.13x = 100,973.31 × 31,765.47
  4. Step 4: Simplify right side
    67,317.13x = 3,207,464,649.61
  5. Step 5: Solve for x
    x = 3,207,464,649.61/67,317.13
  6. Step 6: Final answer
    x = 47,647.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.