Home / 72,644.22-100,261.46-42,433.04

Finding the Fourth Proportional to 72,644.22, 100,261.46 and 42,433.04

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Solution

The fourth proportional to 72,644.22, 100,261.46 and 42,433.04 is: 58,564.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,644.22 : 100,261.46 = 42,433.04 : x
  2. Step 2: Convert to fraction form
    72,644.22/100,261.46 = 42,433.04/x
  3. Step 3: Cross multiply
    72,644.22x = 100,261.46 × 42,433.04
  4. Step 4: Simplify right side
    72,644.22x = 4,254,398,542.64
  5. Step 5: Solve for x
    x = 4,254,398,542.64/72,644.22
  6. Step 6: Final answer
    x = 58,564.86

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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.