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Finding the Fourth Proportional to 64,751.81, 97,141.61 and 36,685.31

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Solution

The fourth proportional to 64,751.81, 97,141.61 and 36,685.31 is: 55,035.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,751.81 : 97,141.61 = 36,685.31 : x
  2. Step 2: Convert to fraction form
    64,751.81/97,141.61 = 36,685.31/x
  3. Step 3: Cross multiply
    64,751.81x = 97,141.61 × 36,685.31
  4. Step 4: Simplify right side
    64,751.81x = 3,563,669,682.75
  5. Step 5: Solve for x
    x = 3,563,669,682.75/64,751.81
  6. Step 6: Final answer
    x = 55,035.84

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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.