Home / 90,328.48-135,499.74-27,143.68

Finding the Fourth Proportional to 90,328.48, 135,499.74 and 27,143.68

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Solution

The fourth proportional to 90,328.48, 135,499.74 and 27,143.68 is: 40,717.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,328.48 : 135,499.74 = 27,143.68 : x
  2. Step 2: Convert to fraction form
    90,328.48/135,499.74 = 27,143.68/x
  3. Step 3: Cross multiply
    90,328.48x = 135,499.74 × 27,143.68
  4. Step 4: Simplify right side
    90,328.48x = 3,677,961,582.64
  5. Step 5: Solve for x
    x = 3,677,961,582.64/90,328.48
  6. Step 6: Final answer
    x = 40,717.63

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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.