Home / 74,647.29-103,034.43-49,172.25

Finding the Fourth Proportional to 74,647.29, 103,034.43 and 49,172.25

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Solution

The fourth proportional to 74,647.29, 103,034.43 and 49,172.25 is: 67,871.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,647.29 : 103,034.43 = 49,172.25 : x
  2. Step 2: Convert to fraction form
    74,647.29/103,034.43 = 49,172.25/x
  3. Step 3: Cross multiply
    74,647.29x = 103,034.43 × 49,172.25
  4. Step 4: Simplify right side
    74,647.29x = 5,066,434,750.57
  5. Step 5: Solve for x
    x = 5,066,434,750.57/74,647.29
  6. Step 6: Final answer
    x = 67,871.65

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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.