Home / 89,171.35-133,755.67-21,703.88

Finding the Fourth Proportional to 89,171.35, 133,755.67 and 21,703.88

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Solution

The fourth proportional to 89,171.35, 133,755.67 and 21,703.88 is: 32,555.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,171.35 : 133,755.67 = 21,703.88 : x
  2. Step 2: Convert to fraction form
    89,171.35/133,755.67 = 21,703.88/x
  3. Step 3: Cross multiply
    89,171.35x = 133,755.67 × 21,703.88
  4. Step 4: Simplify right side
    89,171.35x = 2,903,017,372.52
  5. Step 5: Solve for x
    x = 2,903,017,372.52/89,171.35
  6. Step 6: Final answer
    x = 32,555.50

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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.