Home / 89,172.68-133,757.68-21,705.36

Finding the Fourth Proportional to 89,172.68, 133,757.68 and 21,705.36

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Solution

The fourth proportional to 89,172.68, 133,757.68 and 21,705.36 is: 32,557.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,172.68 : 133,757.68 = 21,705.36 : x
  2. Step 2: Convert to fraction form
    89,172.68/133,757.68 = 21,705.36/x
  3. Step 3: Cross multiply
    89,172.68x = 133,757.68 × 21,705.36
  4. Step 4: Simplify right side
    89,172.68x = 2,903,258,597.16
  5. Step 5: Solve for x
    x = 2,903,258,597.16/89,172.68
  6. Step 6: Final answer
    x = 32,557.71

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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.