Home / 68,222.16-102,330.92-20,835.34

Finding the Fourth Proportional to 68,222.16, 102,330.92 and 20,835.34

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Solution

The fourth proportional to 68,222.16, 102,330.92 and 20,835.34 is: 31,252.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,222.16 : 102,330.92 = 20,835.34 : x
  2. Step 2: Convert to fraction form
    68,222.16/102,330.92 = 20,835.34/x
  3. Step 3: Cross multiply
    68,222.16x = 102,330.92 × 20,835.34
  4. Step 4: Simplify right side
    68,222.16x = 2,132,099,510.71
  5. Step 5: Solve for x
    x = 2,132,099,510.71/68,222.16
  6. Step 6: Final answer
    x = 31,252.30

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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.