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Finding the Fourth Proportional to 89,170.68, 133,754.68 and 21,703.36

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Solution

The fourth proportional to 89,170.68, 133,754.68 and 21,703.36 is: 32,554.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,170.68 : 133,754.68 = 21,703.36 : x
  2. Step 2: Convert to fraction form
    89,170.68/133,754.68 = 21,703.36/x
  3. Step 3: Cross multiply
    89,170.68x = 133,754.68 × 21,703.36
  4. Step 4: Simplify right side
    89,170.68x = 2,902,925,971.72
  5. Step 5: Solve for x
    x = 2,902,925,971.72/89,170.68
  6. Step 6: Final answer
    x = 32,554.71

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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.