Home / 74,925.16-103,395-40,933.78

Finding the Fourth Proportional to 74,925.16, 103,395 and 40,933.78

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Solution

The fourth proportional to 74,925.16, 103,395 and 40,933.78 is: 56,487.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,925.16 : 103,395 = 40,933.78 : x
  2. Step 2: Convert to fraction form
    74,925.16/103,395 = 40,933.78/x
  3. Step 3: Cross multiply
    74,925.16x = 103,395 × 40,933.78
  4. Step 4: Simplify right side
    74,925.16x = 4,232,348,183.10
  5. Step 5: Solve for x
    x = 4,232,348,183.10/74,925.16
  6. Step 6: Final answer
    x = 56,487.68

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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.