Home / 67,102.83-100,687.05-47,507.31

Finding the Fourth Proportional to 67,102.83, 100,687.05 and 47,507.31

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Solution

The fourth proportional to 67,102.83, 100,687.05 and 47,507.31 is: 71,284.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,102.83 : 100,687.05 = 47,507.31 : x
  2. Step 2: Convert to fraction form
    67,102.83/100,687.05 = 47,507.31/x
  3. Step 3: Cross multiply
    67,102.83x = 100,687.05 × 47,507.31
  4. Step 4: Simplify right side
    67,102.83x = 4,783,370,897.34
  5. Step 5: Solve for x
    x = 4,783,370,897.34/67,102.83
  6. Step 6: Final answer
    x = 71,284.19

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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.