Home / 74,304.63-102,540.37-42,474.21

Finding the Fourth Proportional to 74,304.63, 102,540.37 and 42,474.21

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Solution

The fourth proportional to 74,304.63, 102,540.37 and 42,474.21 is: 58,614.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,304.63 : 102,540.37 = 42,474.21 : x
  2. Step 2: Convert to fraction form
    74,304.63/102,540.37 = 42,474.21/x
  3. Step 3: Cross multiply
    74,304.63x = 102,540.37 × 42,474.21
  4. Step 4: Simplify right side
    74,304.63x = 4,355,321,208.86
  5. Step 5: Solve for x
    x = 4,355,321,208.86/74,304.63
  6. Step 6: Final answer
    x = 58,614.40

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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.