Home / 90,329.48-135,501.24-27,144.68

Finding the Fourth Proportional to 90,329.48, 135,501.24 and 27,144.68

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Solution

The fourth proportional to 90,329.48, 135,501.24 and 27,144.68 is: 40,719.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,329.48 : 135,501.24 = 27,144.68 : x
  2. Step 2: Convert to fraction form
    90,329.48/135,501.24 = 27,144.68/x
  3. Step 3: Cross multiply
    90,329.48x = 135,501.24 × 27,144.68
  4. Step 4: Simplify right side
    90,329.48x = 3,678,137,799.40
  5. Step 5: Solve for x
    x = 3,678,137,799.40/90,329.48
  6. Step 6: Final answer
    x = 40,719.13

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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.