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Finding the Fourth Proportional to 67,752.13, 101,627.27 and 21,005.01

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Solution

The fourth proportional to 67,752.13, 101,627.27 and 21,005.01 is: 31,507.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,752.13 : 101,627.27 = 21,005.01 : x
  2. Step 2: Convert to fraction form
    67,752.13/101,627.27 = 21,005.01/x
  3. Step 3: Cross multiply
    67,752.13x = 101,627.27 × 21,005.01
  4. Step 4: Simplify right side
    67,752.13x = 2,134,681,822.62
  5. Step 5: Solve for x
    x = 2,134,681,822.62/67,752.13
  6. Step 6: Final answer
    x = 31,507.23

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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.