Home / 89,212.88-133,818.16-21,745.25

Finding the Fourth Proportional to 89,212.88, 133,818.16 and 21,745.25

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Solution

The fourth proportional to 89,212.88, 133,818.16 and 21,745.25 is: 32,617.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,212.88 : 133,818.16 = 21,745.25 : x
  2. Step 2: Convert to fraction form
    89,212.88/133,818.16 = 21,745.25/x
  3. Step 3: Cross multiply
    89,212.88x = 133,818.16 × 21,745.25
  4. Step 4: Simplify right side
    89,212.88x = 2,909,909,343.74
  5. Step 5: Solve for x
    x = 2,909,909,343.74/89,212.88
  6. Step 6: Final answer
    x = 32,617.59

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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.