Home / 75,032.22-112,506.78-30,690.11

Finding the Fourth Proportional to 75,032.22, 112,506.78 and 30,690.11

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Solution

The fourth proportional to 75,032.22, 112,506.78 and 30,690.11 is: 46,018.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,032.22 : 112,506.78 = 30,690.11 : x
  2. Step 2: Convert to fraction form
    75,032.22/112,506.78 = 30,690.11/x
  3. Step 3: Cross multiply
    75,032.22x = 112,506.78 × 30,690.11
  4. Step 4: Simplify right side
    75,032.22x = 3,452,845,453.95
  5. Step 5: Solve for x
    x = 3,452,845,453.95/75,032.22
  6. Step 6: Final answer
    x = 46,018.17

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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.