Home / 74,443.08-102,731.58-40,451.25

Finding the Fourth Proportional to 74,443.08, 102,731.58 and 40,451.25

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Solution

The fourth proportional to 74,443.08, 102,731.58 and 40,451.25 is: 55,822.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,443.08 : 102,731.58 = 40,451.25 : x
  2. Step 2: Convert to fraction form
    74,443.08/102,731.58 = 40,451.25/x
  3. Step 3: Cross multiply
    74,443.08x = 102,731.58 × 40,451.25
  4. Step 4: Simplify right side
    74,443.08x = 4,155,620,825.48
  5. Step 5: Solve for x
    x = 4,155,620,825.48/74,443.08
  6. Step 6: Final answer
    x = 55,822.80

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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.