Home / 68,020.47-102,030.93-20,635.98

Finding the Fourth Proportional to 68,020.47, 102,030.93 and 20,635.98

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Solution

The fourth proportional to 68,020.47, 102,030.93 and 20,635.98 is: 30,954.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,020.47 : 102,030.93 = 20,635.98 : x
  2. Step 2: Convert to fraction form
    68,020.47/102,030.93 = 20,635.98/x
  3. Step 3: Cross multiply
    68,020.47x = 102,030.93 × 20,635.98
  4. Step 4: Simplify right side
    68,020.47x = 2,105,508,230.86
  5. Step 5: Solve for x
    x = 2,105,508,230.86/68,020.47
  6. Step 6: Final answer
    x = 30,954.04

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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.