Home / 57,726.68-86,602.97-20,289.32

Finding the Fourth Proportional to 57,726.68, 86,602.97 and 20,289.32

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Solution

The fourth proportional to 57,726.68, 86,602.97 and 20,289.32 is: 30,438.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,726.68 : 86,602.97 = 20,289.32 : x
  2. Step 2: Convert to fraction form
    57,726.68/86,602.97 = 20,289.32/x
  3. Step 3: Cross multiply
    57,726.68x = 86,602.97 × 20,289.32
  4. Step 4: Simplify right side
    57,726.68x = 1,757,115,313.75
  5. Step 5: Solve for x
    x = 1,757,115,313.75/57,726.68
  6. Step 6: Final answer
    x = 30,438.53

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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.