Home / 74,921.56-103,390.02-40,930.16

Finding the Fourth Proportional to 74,921.56, 103,390.02 and 40,930.16

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Solution

The fourth proportional to 74,921.56, 103,390.02 and 40,930.16 is: 56,482.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,921.56 : 103,390.02 = 40,930.16 : x
  2. Step 2: Convert to fraction form
    74,921.56/103,390.02 = 40,930.16/x
  3. Step 3: Cross multiply
    74,921.56x = 103,390.02 × 40,930.16
  4. Step 4: Simplify right side
    74,921.56x = 4,231,770,125.62
  5. Step 5: Solve for x
    x = 4,231,770,125.62/74,921.56
  6. Step 6: Final answer
    x = 56,482.68

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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.