Home / 92,939.40-139,330.73-40,309.25

Finding the Fourth Proportional to 92,939.40, 139,330.73 and 40,309.25

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Solution

The fourth proportional to 92,939.40, 139,330.73 and 40,309.25 is: 60,429.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,939.40 : 139,330.73 = 40,309.25 : x
  2. Step 2: Convert to fraction form
    92,939.40/139,330.73 = 40,309.25/x
  3. Step 3: Cross multiply
    92,939.40x = 139,330.73 × 40,309.25
  4. Step 4: Simplify right side
    92,939.40x = 5,616,316,632.37
  5. Step 5: Solve for x
    x = 5,616,316,632.37/92,939.40
  6. Step 6: Final answer
    x = 60,429.88

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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.