Home / 88,763.76-122,489.28-51,981.21

Finding the Fourth Proportional to 88,763.76, 122,489.28 and 51,981.21

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Solution

The fourth proportional to 88,763.76, 122,489.28 and 51,981.21 is: 71,731.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,763.76 : 122,489.28 = 51,981.21 : x
  2. Step 2: Convert to fraction form
    88,763.76/122,489.28 = 51,981.21/x
  3. Step 3: Cross multiply
    88,763.76x = 122,489.28 × 51,981.21
  4. Step 4: Simplify right side
    88,763.76x = 6,367,140,986.43
  5. Step 5: Solve for x
    x = 6,367,140,986.43/88,763.76
  6. Step 6: Final answer
    x = 71,731.31

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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.