Home / 85,315.14-127,917.89-35,429.67

Finding the Fourth Proportional to 85,315.14, 127,917.89 and 35,429.67

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Solution

The fourth proportional to 85,315.14, 127,917.89 and 35,429.67 is: 53,121.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,315.14 : 127,917.89 = 35,429.67 : x
  2. Step 2: Convert to fraction form
    85,315.14/127,917.89 = 35,429.67/x
  3. Step 3: Cross multiply
    85,315.14x = 127,917.89 × 35,429.67
  4. Step 4: Simplify right side
    85,315.14x = 4,532,088,629.80
  5. Step 5: Solve for x
    x = 4,532,088,629.80/85,315.14
  6. Step 6: Final answer
    x = 53,121.74

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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.