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Finding the Fourth Proportional to 79,861.58, 110,244.40 and 51,581.06

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Solution

The fourth proportional to 79,861.58, 110,244.40 and 51,581.06 is: 71,204.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,861.58 : 110,244.40 = 51,581.06 : x
  2. Step 2: Convert to fraction form
    79,861.58/110,244.40 = 51,581.06/x
  3. Step 3: Cross multiply
    79,861.58x = 110,244.40 × 51,581.06
  4. Step 4: Simplify right side
    79,861.58x = 5,686,522,330.89
  5. Step 5: Solve for x
    x = 5,686,522,330.89/79,861.58
  6. Step 6: Final answer
    x = 71,204.74

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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.