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Finding the Fourth Proportional to 80,273.96, 110,831.64 and 50,071.40

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Solution

The fourth proportional to 80,273.96, 110,831.64 and 50,071.40 is: 69,131.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,273.96 : 110,831.64 = 50,071.40 : x
  2. Step 2: Convert to fraction form
    80,273.96/110,831.64 = 50,071.40/x
  3. Step 3: Cross multiply
    80,273.96x = 110,831.64 × 50,071.40
  4. Step 4: Simplify right side
    80,273.96x = 5,549,495,379.10
  5. Step 5: Solve for x
    x = 5,549,495,379.10/80,273.96
  6. Step 6: Final answer
    x = 69,131.95

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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.