Home / 57,102.73-78,799.75-31,609.15

Finding the Fourth Proportional to 57,102.73, 78,799.75 and 31,609.15

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Solution

The fourth proportional to 57,102.73, 78,799.75 and 31,609.15 is: 43,619.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,102.73 : 78,799.75 = 31,609.15 : x
  2. Step 2: Convert to fraction form
    57,102.73/78,799.75 = 31,609.15/x
  3. Step 3: Cross multiply
    57,102.73x = 78,799.75 × 31,609.15
  4. Step 4: Simplify right side
    57,102.73x = 2,490,793,117.71
  5. Step 5: Solve for x
    x = 2,490,793,117.71/57,102.73
  6. Step 6: Final answer
    x = 43,619.51

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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.