Home / 67,262.50-100,644.64-42,102.10

Finding the Fourth Proportional to 67,262.50, 100,644.64 and 42,102.10

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Solution

The fourth proportional to 67,262.50, 100,644.64 and 42,102.10 is: 62,997.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,262.50 : 100,644.64 = 42,102.10 : x
  2. Step 2: Convert to fraction form
    67,262.50/100,644.64 = 42,102.10/x
  3. Step 3: Cross multiply
    67,262.50x = 100,644.64 × 42,102.10
  4. Step 4: Simplify right side
    67,262.50x = 4,237,350,697.74
  5. Step 5: Solve for x
    x = 4,237,350,697.74/67,262.50
  6. Step 6: Final answer
    x = 62,997.22

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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.