Home / 92,949.30-139,428.27-30,620.34

Finding the Fourth Proportional to 92,949.30, 139,428.27 and 30,620.34

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Solution

The fourth proportional to 92,949.30, 139,428.27 and 30,620.34 is: 45,931.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,949.30 : 139,428.27 = 30,620.34 : x
  2. Step 2: Convert to fraction form
    92,949.30/139,428.27 = 30,620.34/x
  3. Step 3: Cross multiply
    92,949.30x = 139,428.27 × 30,620.34
  4. Step 4: Simplify right side
    92,949.30x = 4,269,341,033.01
  5. Step 5: Solve for x
    x = 4,269,341,033.01/92,949.30
  6. Step 6: Final answer
    x = 45,931.93

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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.