Home / 75,122.90-103,669.63-43,291.52

Finding the Fourth Proportional to 75,122.90, 103,669.63 and 43,291.52

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Solution

The fourth proportional to 75,122.90, 103,669.63 and 43,291.52 is: 59,742.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,122.90 : 103,669.63 = 43,291.52 : x
  2. Step 2: Convert to fraction form
    75,122.90/103,669.63 = 43,291.52/x
  3. Step 3: Cross multiply
    75,122.90x = 103,669.63 × 43,291.52
  4. Step 4: Simplify right side
    75,122.90x = 4,488,015,860.54
  5. Step 5: Solve for x
    x = 4,488,015,860.54/75,122.90
  6. Step 6: Final answer
    x = 59,742.31

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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.