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Finding the Fourth Proportional to 64,756.64, 97,131.71 and 18,009.92

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Solution

The fourth proportional to 64,756.64, 97,131.71 and 18,009.92 is: 27,013.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,756.64 : 97,131.71 = 18,009.92 : x
  2. Step 2: Convert to fraction form
    64,756.64/97,131.71 = 18,009.92/x
  3. Step 3: Cross multiply
    64,756.64x = 97,131.71 × 18,009.92
  4. Step 4: Simplify right side
    64,756.64x = 1,749,333,750.86
  5. Step 5: Solve for x
    x = 1,749,333,750.86/64,756.64
  6. Step 6: Final answer
    x = 27,013.97

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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.