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Finding the Fourth Proportional to 60,799.80, 91,077.40 and 30,312.94

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Solution

The fourth proportional to 60,799.80, 91,077.40 and 30,312.94 is: 45,408.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,799.80 : 91,077.40 = 30,312.94 : x
  2. Step 2: Convert to fraction form
    60,799.80/91,077.40 = 30,312.94/x
  3. Step 3: Cross multiply
    60,799.80x = 91,077.40 × 30,312.94
  4. Step 4: Simplify right side
    60,799.80x = 2,760,823,761.56
  5. Step 5: Solve for x
    x = 2,760,823,761.56/60,799.80
  6. Step 6: Final answer
    x = 45,408.43

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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.