Home / 89,519.70-134,279.55-42,105.32

Finding the Fourth Proportional to 89,519.70, 134,279.55 and 42,105.32

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Solution

The fourth proportional to 89,519.70, 134,279.55 and 42,105.32 is: 63,157.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,519.70 : 134,279.55 = 42,105.32 : x
  2. Step 2: Convert to fraction form
    89,519.70/134,279.55 = 42,105.32/x
  3. Step 3: Cross multiply
    89,519.70x = 134,279.55 × 42,105.32
  4. Step 4: Simplify right side
    89,519.70x = 5,653,882,750.81
  5. Step 5: Solve for x
    x = 5,653,882,750.81/89,519.70
  6. Step 6: Final answer
    x = 63,157.97

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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.