Home / 53,660.02-80,489.96-20,380.02

Finding the Fourth Proportional to 53,660.02, 80,489.96 and 20,380.02

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Solution

The fourth proportional to 53,660.02, 80,489.96 and 20,380.02 is: 30,570.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,660.02 : 80,489.96 = 20,380.02 : x
  2. Step 2: Convert to fraction form
    53,660.02/80,489.96 = 20,380.02/x
  3. Step 3: Cross multiply
    53,660.02x = 80,489.96 × 20,380.02
  4. Step 4: Simplify right side
    53,660.02x = 1,640,386,969.12
  5. Step 5: Solve for x
    x = 1,640,386,969.12/53,660.02
  6. Step 6: Final answer
    x = 30,570.00

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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.