Home / 74,168.87-102,353.54-40,177.36

Finding the Fourth Proportional to 74,168.87, 102,353.54 and 40,177.36

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Solution

The fourth proportional to 74,168.87, 102,353.54 and 40,177.36 is: 55,445.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,168.87 : 102,353.54 = 40,177.36 : x
  2. Step 2: Convert to fraction form
    74,168.87/102,353.54 = 40,177.36/x
  3. Step 3: Cross multiply
    74,168.87x = 102,353.54 × 40,177.36
  4. Step 4: Simplify right side
    74,168.87x = 4,112,295,386.42
  5. Step 5: Solve for x
    x = 4,112,295,386.42/74,168.87
  6. Step 6: Final answer
    x = 55,445.03

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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.