Home / 64,890.96-97,336.56-18,143.82

Finding the Fourth Proportional to 64,890.96, 97,336.56 and 18,143.82

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Solution

The fourth proportional to 64,890.96, 97,336.56 and 18,143.82 is: 27,215.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,890.96 : 97,336.56 = 18,143.82 : x
  2. Step 2: Convert to fraction form
    64,890.96/97,336.56 = 18,143.82/x
  3. Step 3: Cross multiply
    64,890.96x = 97,336.56 × 18,143.82
  4. Step 4: Simplify right side
    64,890.96x = 1,766,057,024.06
  5. Step 5: Solve for x
    x = 1,766,057,024.06/64,890.96
  6. Step 6: Final answer
    x = 27,215.76

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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.