Home / 81,666.68-122,495.62-25,500.34

Finding the Fourth Proportional to 81,666.68, 122,495.62 and 25,500.34

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Solution

The fourth proportional to 81,666.68, 122,495.62 and 25,500.34 is: 38,249.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,666.68 : 122,495.62 = 25,500.34 : x
  2. Step 2: Convert to fraction form
    81,666.68/122,495.62 = 25,500.34/x
  3. Step 3: Cross multiply
    81,666.68x = 122,495.62 × 25,500.34
  4. Step 4: Simplify right side
    81,666.68x = 3,123,680,368.49
  5. Step 5: Solve for x
    x = 3,123,680,368.49/81,666.68
  6. Step 6: Final answer
    x = 38,249.14

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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.