Home / 74,202.16-102,399.56-40,669.36

Finding the Fourth Proportional to 74,202.16, 102,399.56 and 40,669.36

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Solution

The fourth proportional to 74,202.16, 102,399.56 and 40,669.36 is: 56,124.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,202.16 : 102,399.56 = 40,669.36 : x
  2. Step 2: Convert to fraction form
    74,202.16/102,399.56 = 40,669.36/x
  3. Step 3: Cross multiply
    74,202.16x = 102,399.56 × 40,669.36
  4. Step 4: Simplify right side
    74,202.16x = 4,164,524,569.48
  5. Step 5: Solve for x
    x = 4,164,524,569.48/74,202.16
  6. Step 6: Final answer
    x = 56,124.03

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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.