Home / 80,840.84-111,563.79-45,030.86

Finding the Fourth Proportional to 80,840.84, 111,563.79 and 45,030.86

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Solution

The fourth proportional to 80,840.84, 111,563.79 and 45,030.86 is: 62,144.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,840.84 : 111,563.79 = 45,030.86 : x
  2. Step 2: Convert to fraction form
    80,840.84/111,563.79 = 45,030.86/x
  3. Step 3: Cross multiply
    80,840.84x = 111,563.79 × 45,030.86
  4. Step 4: Simplify right side
    80,840.84x = 5,023,812,850.74
  5. Step 5: Solve for x
    x = 5,023,812,850.74/80,840.84
  6. Step 6: Final answer
    x = 62,144.49

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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.