Home / 74,865.60-103,310.10-40,867.32

Finding the Fourth Proportional to 74,865.60, 103,310.10 and 40,867.32

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Solution

The fourth proportional to 74,865.60, 103,310.10 and 40,867.32 is: 56,394.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,865.60 : 103,310.10 = 40,867.32 : x
  2. Step 2: Convert to fraction form
    74,865.60/103,310.10 = 40,867.32/x
  3. Step 3: Cross multiply
    74,865.60x = 103,310.10 × 40,867.32
  4. Step 4: Simplify right side
    74,865.60x = 4,222,006,915.93
  5. Step 5: Solve for x
    x = 4,222,006,915.93/74,865.60
  6. Step 6: Final answer
    x = 56,394.48

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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.