Home / 89,506.29-134,259.74-30,383.78

Finding the Fourth Proportional to 89,506.29, 134,259.74 and 30,383.78

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Solution

The fourth proportional to 89,506.29, 134,259.74 and 30,383.78 is: 45,575.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,506.29 : 134,259.74 = 30,383.78 : x
  2. Step 2: Convert to fraction form
    89,506.29/134,259.74 = 30,383.78/x
  3. Step 3: Cross multiply
    89,506.29x = 134,259.74 × 30,383.78
  4. Step 4: Simplify right side
    89,506.29x = 4,079,317,579.80
  5. Step 5: Solve for x
    x = 4,079,317,579.80/89,506.29
  6. Step 6: Final answer
    x = 45,575.76

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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.