Home / 74,695.21-103,073.05-42,863.43

Finding the Fourth Proportional to 74,695.21, 103,073.05 and 42,863.43

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Solution

The fourth proportional to 74,695.21, 103,073.05 and 42,863.43 is: 59,147.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,695.21 : 103,073.05 = 42,863.43 : x
  2. Step 2: Convert to fraction form
    74,695.21/103,073.05 = 42,863.43/x
  3. Step 3: Cross multiply
    74,695.21x = 103,073.05 × 42,863.43
  4. Step 4: Simplify right side
    74,695.21x = 4,418,064,463.56
  5. Step 5: Solve for x
    x = 4,418,064,463.56/74,695.21
  6. Step 6: Final answer
    x = 59,147.90

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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.