Home / 74,480.36-102,783.33-40,489.11

Finding the Fourth Proportional to 74,480.36, 102,783.33 and 40,489.11

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Solution

The fourth proportional to 74,480.36, 102,783.33 and 40,489.11 is: 55,875.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,480.36 : 102,783.33 = 40,489.11 : x
  2. Step 2: Convert to fraction form
    74,480.36/102,783.33 = 40,489.11/x
  3. Step 3: Cross multiply
    74,480.36x = 102,783.33 × 40,489.11
  4. Step 4: Simplify right side
    74,480.36x = 4,161,605,554.54
  5. Step 5: Solve for x
    x = 4,161,605,554.54/74,480.36
  6. Step 6: Final answer
    x = 55,875.21

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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.