Home / 53,746.31-80,619.56-20,458.73

Finding the Fourth Proportional to 53,746.31, 80,619.56 and 20,458.73

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Solution

The fourth proportional to 53,746.31, 80,619.56 and 20,458.73 is: 30,688.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,746.31 : 80,619.56 = 20,458.73 : x
  2. Step 2: Convert to fraction form
    53,746.31/80,619.56 = 20,458.73/x
  3. Step 3: Cross multiply
    53,746.31x = 80,619.56 × 20,458.73
  4. Step 4: Simplify right side
    53,746.31x = 1,649,373,708.47
  5. Step 5: Solve for x
    x = 1,649,373,708.47/53,746.31
  6. Step 6: Final answer
    x = 30,688.13

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.