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Finding the Fourth Proportional to 53,887.68, 80,799.80 and 20,610.18

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Solution

The fourth proportional to 53,887.68, 80,799.80 and 20,610.18 is: 30,903.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,887.68 : 80,799.80 = 20,610.18 : x
  2. Step 2: Convert to fraction form
    53,887.68/80,799.80 = 20,610.18/x
  3. Step 3: Cross multiply
    53,887.68x = 80,799.80 × 20,610.18
  4. Step 4: Simplify right side
    53,887.68x = 1,665,298,318.91
  5. Step 5: Solve for x
    x = 1,665,298,318.91/53,887.68
  6. Step 6: Final answer
    x = 30,903.14

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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.