Home / 81,556.82-112,555.20-45,261.69

Finding the Fourth Proportional to 81,556.82, 112,555.20 and 45,261.69

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Solution

The fourth proportional to 81,556.82, 112,555.20 and 45,261.69 is: 62,464.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,556.82 : 112,555.20 = 45,261.69 : x
  2. Step 2: Convert to fraction form
    81,556.82/112,555.20 = 45,261.69/x
  3. Step 3: Cross multiply
    81,556.82x = 112,555.20 × 45,261.69
  4. Step 4: Simplify right side
    81,556.82x = 5,094,438,570.29
  5. Step 5: Solve for x
    x = 5,094,438,570.29/81,556.82
  6. Step 6: Final answer
    x = 62,464.90

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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.