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Finding the Fourth Proportional to 64,717, 89,292 and 37,866.10

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Solution

The fourth proportional to 64,717, 89,292 and 37,866.10 is: 52,245.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,717 : 89,292 = 37,866.10 : x
  2. Step 2: Convert to fraction form
    64,717/89,292 = 37,866.10/x
  3. Step 3: Cross multiply
    64,717x = 89,292 × 37,866.10
  4. Step 4: Simplify right side
    64,717x = 3,381,139,801.20
  5. Step 5: Solve for x
    x = 3,381,139,801.20/64,717
  6. Step 6: Final answer
    x = 52,245.00

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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.