Home / 89,333.14-133,979.24-53,319.75

Finding the Fourth Proportional to 89,333.14, 133,979.24 and 53,319.75

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Solution

The fourth proportional to 89,333.14, 133,979.24 and 53,319.75 is: 79,967.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,333.14 : 133,979.24 = 53,319.75 : x
  2. Step 2: Convert to fraction form
    89,333.14/133,979.24 = 53,319.75/x
  3. Step 3: Cross multiply
    89,333.14x = 133,979.24 × 53,319.75
  4. Step 4: Simplify right side
    89,333.14x = 7,143,739,581.99
  5. Step 5: Solve for x
    x = 7,143,739,581.99/89,333.14
  6. Step 6: Final answer
    x = 79,967.41

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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.