Home / 74,007.81-102,131.19-40,016.16

Finding the Fourth Proportional to 74,007.81, 102,131.19 and 40,016.16

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Solution

The fourth proportional to 74,007.81, 102,131.19 and 40,016.16 is: 55,222.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,007.81 : 102,131.19 = 40,016.16 : x
  2. Step 2: Convert to fraction form
    74,007.81/102,131.19 = 40,016.16/x
  3. Step 3: Cross multiply
    74,007.81x = 102,131.19 × 40,016.16
  4. Step 4: Simplify right side
    74,007.81x = 4,086,898,040.03
  5. Step 5: Solve for x
    x = 4,086,898,040.03/74,007.81
  6. Step 6: Final answer
    x = 55,222.52

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1.5x scale

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.