Home / 57,319.55-85,994.26-21,781.51

Finding the Fourth Proportional to 57,319.55, 85,994.26 and 21,781.51

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Solution

The fourth proportional to 57,319.55, 85,994.26 and 21,781.51 is: 32,677.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,319.55 : 85,994.26 = 21,781.51 : x
  2. Step 2: Convert to fraction form
    57,319.55/85,994.26 = 21,781.51/x
  3. Step 3: Cross multiply
    57,319.55x = 85,994.26 × 21,781.51
  4. Step 4: Simplify right side
    57,319.55x = 1,873,084,834.13
  5. Step 5: Solve for x
    x = 1,873,084,834.13/57,319.55
  6. Step 6: Final answer
    x = 32,677.94

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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.