Home / 89,391.21-134,104.10-30,236.51

Finding the Fourth Proportional to 89,391.21, 134,104.10 and 30,236.51

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Solution

The fourth proportional to 89,391.21, 134,104.10 and 30,236.51 is: 45,360.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,391.21 : 134,104.10 = 30,236.51 : x
  2. Step 2: Convert to fraction form
    89,391.21/134,104.10 = 30,236.51/x
  3. Step 3: Cross multiply
    89,391.21x = 134,104.10 × 30,236.51
  4. Step 4: Simplify right side
    89,391.21x = 4,054,839,138.99
  5. Step 5: Solve for x
    x = 4,054,839,138.99/89,391.21
  6. Step 6: Final answer
    x = 45,360.60

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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.