Home / 68,440.04-102,516.91-55,040.67

Finding the Fourth Proportional to 68,440.04, 102,516.91 and 55,040.67

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Solution

The fourth proportional to 68,440.04, 102,516.91 and 55,040.67 is: 82,445.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,440.04 : 102,516.91 = 55,040.67 : x
  2. Step 2: Convert to fraction form
    68,440.04/102,516.91 = 55,040.67/x
  3. Step 3: Cross multiply
    68,440.04x = 102,516.91 × 55,040.67
  4. Step 4: Simplify right side
    68,440.04x = 5,642,599,659.57
  5. Step 5: Solve for x
    x = 5,642,599,659.57/68,440.04
  6. Step 6: Final answer
    x = 82,445.89

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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.