Home / 74,856.90-112,187.85-30,431.82

Finding the Fourth Proportional to 74,856.90, 112,187.85 and 30,431.82

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Solution

The fourth proportional to 74,856.90, 112,187.85 and 30,431.82 is: 45,608.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,856.90 : 112,187.85 = 30,431.82 : x
  2. Step 2: Convert to fraction form
    74,856.90/112,187.85 = 30,431.82/x
  3. Step 3: Cross multiply
    74,856.90x = 112,187.85 × 30,431.82
  4. Step 4: Simplify right side
    74,856.90x = 3,414,080,457.39
  5. Step 5: Solve for x
    x = 3,414,080,457.39/74,856.90
  6. Step 6: Final answer
    x = 45,608.09

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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.