Home / 74,100.38-102,258.52-40,566.38

Finding the Fourth Proportional to 74,100.38, 102,258.52 and 40,566.38

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Solution

The fourth proportional to 74,100.38, 102,258.52 and 40,566.38 is: 55,981.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,100.38 : 102,258.52 = 40,566.38 : x
  2. Step 2: Convert to fraction form
    74,100.38/102,258.52 = 40,566.38/x
  3. Step 3: Cross multiply
    74,100.38x = 102,258.52 × 40,566.38
  4. Step 4: Simplify right side
    74,100.38x = 4,148,257,980.56
  5. Step 5: Solve for x
    x = 4,148,257,980.56/74,100.38
  6. Step 6: Final answer
    x = 55,981.60

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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.