Home / 74,328.78-102,573.18-40,336.41

Finding the Fourth Proportional to 74,328.78, 102,573.18 and 40,336.41

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Solution

The fourth proportional to 74,328.78, 102,573.18 and 40,336.41 is: 55,663.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,328.78 : 102,573.18 = 40,336.41 : x
  2. Step 2: Convert to fraction form
    74,328.78/102,573.18 = 40,336.41/x
  3. Step 3: Cross multiply
    74,328.78x = 102,573.18 × 40,336.41
  4. Step 4: Simplify right side
    74,328.78x = 4,137,433,843.48
  5. Step 5: Solve for x
    x = 4,137,433,843.48/74,328.78
  6. Step 6: Final answer
    x = 55,663.95

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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.