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Finding the Fourth Proportional to 64,998.95, 89,699.13 and 38,141.88

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Solution

The fourth proportional to 64,998.95, 89,699.13 and 38,141.88 is: 52,636.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,998.95 : 89,699.13 = 38,141.88 : x
  2. Step 2: Convert to fraction form
    64,998.95/89,699.13 = 38,141.88/x
  3. Step 3: Cross multiply
    64,998.95x = 89,699.13 × 38,141.88
  4. Step 4: Simplify right side
    64,998.95x = 3,421,293,452.56
  5. Step 5: Solve for x
    x = 3,421,293,452.56/64,998.95
  6. Step 6: Final answer
    x = 52,636.14

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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.