Home / 51,309.10-76,971.75-21,727.12

Finding the Fourth Proportional to 51,309.10, 76,971.75 and 21,727.12

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Solution

The fourth proportional to 51,309.10, 76,971.75 and 21,727.12 is: 32,594.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,309.10 : 76,971.75 = 21,727.12 : x
  2. Step 2: Convert to fraction form
    51,309.10/76,971.75 = 21,727.12/x
  3. Step 3: Cross multiply
    51,309.10x = 76,971.75 × 21,727.12
  4. Step 4: Simplify right side
    51,309.10x = 1,672,374,448.86
  5. Step 5: Solve for x
    x = 1,672,374,448.86/51,309.10
  6. Step 6: Final answer
    x = 32,594.11

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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.