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Finding the Fourth Proportional to 67,560, 101,353.44 and 20,810.88

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Solution

The fourth proportional to 67,560, 101,353.44 and 20,810.88 is: 31,220.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,560 : 101,353.44 = 20,810.88 : x
  2. Step 2: Convert to fraction form
    67,560/101,353.44 = 20,810.88/x
  3. Step 3: Cross multiply
    67,560x = 101,353.44 × 20,810.88
  4. Step 4: Simplify right side
    67,560x = 2,109,254,277.43
  5. Step 5: Solve for x
    x = 2,109,254,277.43/67,560
  6. Step 6: Final answer
    x = 31,220.46

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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.