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Finding the Fourth Proportional to 88,130.88, 121,620.72 and 47,844.66

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Solution

The fourth proportional to 88,130.88, 121,620.72 and 47,844.66 is: 66,025.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,130.88 : 121,620.72 = 47,844.66 : x
  2. Step 2: Convert to fraction form
    88,130.88/121,620.72 = 47,844.66/x
  3. Step 3: Cross multiply
    88,130.88x = 121,620.72 × 47,844.66
  4. Step 4: Simplify right side
    88,130.88x = 5,818,901,997.36
  5. Step 5: Solve for x
    x = 5,818,901,997.36/88,130.88
  6. Step 6: Final answer
    x = 66,025.69

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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.