Home / 80,564.64-111,186.72-48,741.36

Finding the Fourth Proportional to 80,564.64, 111,186.72 and 48,741.36

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Solution

The fourth proportional to 80,564.64, 111,186.72 and 48,741.36 is: 67,267.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,564.64 : 111,186.72 = 48,741.36 : x
  2. Step 2: Convert to fraction form
    80,564.64/111,186.72 = 48,741.36/x
  3. Step 3: Cross multiply
    80,564.64x = 111,186.72 × 48,741.36
  4. Step 4: Simplify right side
    80,564.64x = 5,419,391,946.74
  5. Step 5: Solve for x
    x = 5,419,391,946.74/80,564.64
  6. Step 6: Final answer
    x = 67,267.62

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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.