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Finding the Fourth Proportional to 79,577.70, 109,811.88 and 45,586.32

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Solution

The fourth proportional to 79,577.70, 109,811.88 and 45,586.32 is: 62,906.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,577.70 : 109,811.88 = 45,586.32 : x
  2. Step 2: Convert to fraction form
    79,577.70/109,811.88 = 45,586.32/x
  3. Step 3: Cross multiply
    79,577.70x = 109,811.88 × 45,586.32
  4. Step 4: Simplify right side
    79,577.70x = 5,005,919,501.48
  5. Step 5: Solve for x
    x = 5,005,919,501.48/79,577.70
  6. Step 6: Final answer
    x = 62,906.06

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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.