Home / 74,932.06-103,405.03-40,939.81

Finding the Fourth Proportional to 74,932.06, 103,405.03 and 40,939.81

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Solution

The fourth proportional to 74,932.06, 103,405.03 and 40,939.81 is: 56,496.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,932.06 : 103,405.03 = 40,939.81 : x
  2. Step 2: Convert to fraction form
    74,932.06/103,405.03 = 40,939.81/x
  3. Step 3: Cross multiply
    74,932.06x = 103,405.03 × 40,939.81
  4. Step 4: Simplify right side
    74,932.06x = 4,233,382,877.74
  5. Step 5: Solve for x
    x = 4,233,382,877.74/74,932.06
  6. Step 6: Final answer
    x = 56,496.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.