Home / 80,911.02-121,380.43-24,749.78

Finding the Fourth Proportional to 80,911.02, 121,380.43 and 24,749.78

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Solution

The fourth proportional to 80,911.02, 121,380.43 and 24,749.78 is: 37,128.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,911.02 : 121,380.43 = 24,749.78 : x
  2. Step 2: Convert to fraction form
    80,911.02/121,380.43 = 24,749.78/x
  3. Step 3: Cross multiply
    80,911.02x = 121,380.43 × 24,749.78
  4. Step 4: Simplify right side
    80,911.02x = 3,004,138,938.81
  5. Step 5: Solve for x
    x = 3,004,138,938.81/80,911.02
  6. Step 6: Final answer
    x = 37,128.92

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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.