Home / 53,688.44-80,532.72-20,400.68

Finding the Fourth Proportional to 53,688.44, 80,532.72 and 20,400.68

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Solution

The fourth proportional to 53,688.44, 80,532.72 and 20,400.68 is: 30,601.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,688.44 : 80,532.72 = 20,400.68 : x
  2. Step 2: Convert to fraction form
    53,688.44/80,532.72 = 20,400.68/x
  3. Step 3: Cross multiply
    53,688.44x = 80,532.72 × 20,400.68
  4. Step 4: Simplify right side
    53,688.44x = 1,642,922,250.25
  5. Step 5: Solve for x
    x = 1,642,922,250.25/53,688.44
  6. Step 6: Final answer
    x = 30,601.04

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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.