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Finding the Fourth Proportional to 80,659.79, 121,014.29 and 41,244.59

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Solution

The fourth proportional to 80,659.79, 121,014.29 and 41,244.59 is: 61,879.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,659.79 : 121,014.29 = 41,244.59 : x
  2. Step 2: Convert to fraction form
    80,659.79/121,014.29 = 41,244.59/x
  3. Step 3: Cross multiply
    80,659.79x = 121,014.29 × 41,244.59
  4. Step 4: Simplify right side
    80,659.79x = 4,991,184,273.23
  5. Step 5: Solve for x
    x = 4,991,184,273.23/80,659.79
  6. Step 6: Final answer
    x = 61,879.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.