Home / 92,989.38-139,405.47-40,359.30

Finding the Fourth Proportional to 92,989.38, 139,405.47 and 40,359.30

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Solution

The fourth proportional to 92,989.38, 139,405.47 and 40,359.30 is: 60,504.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,989.38 : 139,405.47 = 40,359.30 : x
  2. Step 2: Convert to fraction form
    92,989.38/139,405.47 = 40,359.30/x
  3. Step 3: Cross multiply
    92,989.38x = 139,405.47 × 40,359.30
  4. Step 4: Simplify right side
    92,989.38x = 5,626,307,185.37
  5. Step 5: Solve for x
    x = 5,626,307,185.37/92,989.38
  6. Step 6: Final answer
    x = 60,504.84

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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.