Home / 81,370.08-112,287.60-45,556.74

Finding the Fourth Proportional to 81,370.08, 112,287.60 and 45,556.74

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Solution

The fourth proportional to 81,370.08, 112,287.60 and 45,556.74 is: 62,866.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,370.08 : 112,287.60 = 45,556.74 : x
  2. Step 2: Convert to fraction form
    81,370.08/112,287.60 = 45,556.74/x
  3. Step 3: Cross multiply
    81,370.08x = 112,287.60 × 45,556.74
  4. Step 4: Simplify right side
    81,370.08x = 5,115,456,998.42
  5. Step 5: Solve for x
    x = 5,115,456,998.42/81,370.08
  6. Step 6: Final answer
    x = 62,866.56

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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.