Home / 63,640.47-88,014.14-55,668.85

Finding the Fourth Proportional to 63,640.47, 88,014.14 and 55,668.85

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Solution

The fourth proportional to 63,640.47, 88,014.14 and 55,668.85 is: 76,989.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,640.47 : 88,014.14 = 55,668.85 : x
  2. Step 2: Convert to fraction form
    63,640.47/88,014.14 = 55,668.85/x
  3. Step 3: Cross multiply
    63,640.47x = 88,014.14 × 55,668.85
  4. Step 4: Simplify right side
    63,640.47x = 4,899,645,957.54
  5. Step 5: Solve for x
    x = 4,899,645,957.54/63,640.47
  6. Step 6: Final answer
    x = 76,989.47

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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.