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Finding the Fourth Proportional to 80,289.86, 110,818.44 and 53,433.50

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Solution

The fourth proportional to 80,289.86, 110,818.44 and 53,433.50 is: 73,750.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,289.86 : 110,818.44 = 53,433.50 : x
  2. Step 2: Convert to fraction form
    80,289.86/110,818.44 = 53,433.50/x
  3. Step 3: Cross multiply
    80,289.86x = 110,818.44 × 53,433.50
  4. Step 4: Simplify right side
    80,289.86x = 5,921,417,113.74
  5. Step 5: Solve for x
    x = 5,921,417,113.74/80,289.86
  6. Step 6: Final answer
    x = 73,750.50

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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.