Home / 74,326.78-102,570.42-40,334.40

Finding the Fourth Proportional to 74,326.78, 102,570.42 and 40,334.40

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Solution

The fourth proportional to 74,326.78, 102,570.42 and 40,334.40 is: 55,661.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,326.78 : 102,570.42 = 40,334.40 : x
  2. Step 2: Convert to fraction form
    74,326.78/102,570.42 = 40,334.40/x
  3. Step 3: Cross multiply
    74,326.78x = 102,570.42 × 40,334.40
  4. Step 4: Simplify right side
    74,326.78x = 4,137,116,348.45
  5. Step 5: Solve for x
    x = 4,137,116,348.45/74,326.78
  6. Step 6: Final answer
    x = 55,661.18

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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.