Home / 74,839.89-103,278.24-40,848.11

Finding the Fourth Proportional to 74,839.89, 103,278.24 and 40,848.11

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Solution

The fourth proportional to 74,839.89, 103,278.24 and 40,848.11 is: 56,369.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,839.89 : 103,278.24 = 40,848.11 : x
  2. Step 2: Convert to fraction form
    74,839.89/103,278.24 = 40,848.11/x
  3. Step 3: Cross multiply
    74,839.89x = 103,278.24 × 40,848.11
  4. Step 4: Simplify right side
    74,839.89x = 4,218,720,391.74
  5. Step 5: Solve for x
    x = 4,218,720,391.74/74,839.89
  6. Step 6: Final answer
    x = 56,369.94

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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.