Home / 80,941.66-111,699.54-45,130.86

Finding the Fourth Proportional to 80,941.66, 111,699.54 and 45,130.86

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Solution

The fourth proportional to 80,941.66, 111,699.54 and 45,130.86 is: 62,280.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,941.66 : 111,699.54 = 45,130.86 : x
  2. Step 2: Convert to fraction form
    80,941.66/111,699.54 = 45,130.86/x
  3. Step 3: Cross multiply
    80,941.66x = 111,699.54 × 45,130.86
  4. Step 4: Simplify right side
    80,941.66x = 5,041,096,301.80
  5. Step 5: Solve for x
    x = 5,041,096,301.80/80,941.66
  6. Step 6: Final answer
    x = 62,280.61

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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.