Home / 90,849.09-136,279.10-38,262.67

Finding the Fourth Proportional to 90,849.09, 136,279.10 and 38,262.67

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Solution

The fourth proportional to 90,849.09, 136,279.10 and 38,262.67 is: 57,396.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,849.09 : 136,279.10 = 38,262.67 : x
  2. Step 2: Convert to fraction form
    90,849.09/136,279.10 = 38,262.67/x
  3. Step 3: Cross multiply
    90,849.09x = 136,279.10 × 38,262.67
  4. Step 4: Simplify right side
    90,849.09x = 5,214,402,231.20
  5. Step 5: Solve for x
    x = 5,214,402,231.20/90,849.09
  6. Step 6: Final answer
    x = 57,396.31

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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.