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Finding the Fourth Proportional to 64,013.75, 88,380.58 and 57,287.81

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Solution

The fourth proportional to 64,013.75, 88,380.58 and 57,287.81 is: 79,094.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,013.75 : 88,380.58 = 57,287.81 : x
  2. Step 2: Convert to fraction form
    64,013.75/88,380.58 = 57,287.81/x
  3. Step 3: Cross multiply
    64,013.75x = 88,380.58 × 57,287.81
  4. Step 4: Simplify right side
    64,013.75x = 5,063,129,874.73
  5. Step 5: Solve for x
    x = 5,063,129,874.73/64,013.75
  6. Step 6: Final answer
    x = 79,094.41

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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.