Home / 67,732.34-101,605.71-20,988.86

Finding the Fourth Proportional to 67,732.34, 101,605.71 and 20,988.86

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Solution

The fourth proportional to 67,732.34, 101,605.71 and 20,988.86 is: 31,485.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,732.34 : 101,605.71 = 20,988.86 : x
  2. Step 2: Convert to fraction form
    67,732.34/101,605.71 = 20,988.86/x
  3. Step 3: Cross multiply
    67,732.34x = 101,605.71 × 20,988.86
  4. Step 4: Simplify right side
    67,732.34x = 2,132,588,022.39
  5. Step 5: Solve for x
    x = 2,132,588,022.39/67,732.34
  6. Step 6: Final answer
    x = 31,485.52

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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.