Home / 90,068.57-135,122.16-26,893.67

Finding the Fourth Proportional to 90,068.57, 135,122.16 and 26,893.67

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Solution

The fourth proportional to 90,068.57, 135,122.16 and 26,893.67 is: 40,346.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,068.57 : 135,122.16 = 26,893.67 : x
  2. Step 2: Convert to fraction form
    90,068.57/135,122.16 = 26,893.67/x
  3. Step 3: Cross multiply
    90,068.57x = 135,122.16 × 26,893.67
  4. Step 4: Simplify right side
    90,068.57x = 3,633,930,814.75
  5. Step 5: Solve for x
    x = 3,633,930,814.75/90,068.57
  6. Step 6: Final answer
    x = 40,346.27

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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.