Home / 81,765.20-112,841.16-53,546.96

Finding the Fourth Proportional to 81,765.20, 112,841.16 and 53,546.96

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Solution

The fourth proportional to 81,765.20, 112,841.16 and 53,546.96 is: 73,898.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,765.20 : 112,841.16 = 53,546.96 : x
  2. Step 2: Convert to fraction form
    81,765.20/112,841.16 = 53,546.96/x
  3. Step 3: Cross multiply
    81,765.20x = 112,841.16 × 53,546.96
  4. Step 4: Simplify right side
    81,765.20x = 6,042,301,080.87
  5. Step 5: Solve for x
    x = 6,042,301,080.87/81,765.20
  6. Step 6: Final answer
    x = 73,898.20

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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.