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Finding the Fourth Proportional to 80,059.79, 110,453.29 and 61,668.47

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Solution

The fourth proportional to 80,059.79, 110,453.29 and 61,668.47 is: 85,079.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,059.79 : 110,453.29 = 61,668.47 : x
  2. Step 2: Convert to fraction form
    80,059.79/110,453.29 = 61,668.47/x
  3. Step 3: Cross multiply
    80,059.79x = 110,453.29 × 61,668.47
  4. Step 4: Simplify right side
    80,059.79x = 6,811,485,522.73
  5. Step 5: Solve for x
    x = 6,811,485,522.73/80,059.79
  6. Step 6: Final answer
    x = 85,079.98

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1.5x scale

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.