Home / 53,682.73-80,533.53-20,405.70

Finding the Fourth Proportional to 53,682.73, 80,533.53 and 20,405.70

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Solution

The fourth proportional to 53,682.73, 80,533.53 and 20,405.70 is: 30,612.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,682.73 : 80,533.53 = 20,405.70 : x
  2. Step 2: Convert to fraction form
    53,682.73/80,533.53 = 20,405.70/x
  3. Step 3: Cross multiply
    53,682.73x = 80,533.53 × 20,405.70
  4. Step 4: Simplify right side
    53,682.73x = 1,643,343,053.12
  5. Step 5: Solve for x
    x = 1,643,343,053.12/53,682.73
  6. Step 6: Final answer
    x = 30,612.14

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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.