Home / 88,276.86-121,823.28-47,990.63

Finding the Fourth Proportional to 88,276.86, 121,823.28 and 47,990.63

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Solution

The fourth proportional to 88,276.86, 121,823.28 and 47,990.63 is: 66,227.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,276.86 : 121,823.28 = 47,990.63 : x
  2. Step 2: Convert to fraction form
    88,276.86/121,823.28 = 47,990.63/x
  3. Step 3: Cross multiply
    88,276.86x = 121,823.28 × 47,990.63
  4. Step 4: Simplify right side
    88,276.86x = 5,846,375,346.75
  5. Step 5: Solve for x
    x = 5,846,375,346.75/88,276.86
  6. Step 6: Final answer
    x = 66,227.72

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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.