Home / 74,269.71-102,389.67-71,943.39

Finding the Fourth Proportional to 74,269.71, 102,389.67 and 71,943.39

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Solution

The fourth proportional to 74,269.71, 102,389.67 and 71,943.39 is: 99,182.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,269.71 : 102,389.67 = 71,943.39 : x
  2. Step 2: Convert to fraction form
    74,269.71/102,389.67 = 71,943.39/x
  3. Step 3: Cross multiply
    74,269.71x = 102,389.67 × 71,943.39
  4. Step 4: Simplify right side
    74,269.71x = 7,366,259,960.78
  5. Step 5: Solve for x
    x = 7,366,259,960.78/74,269.71
  6. Step 6: Final answer
    x = 99,182.56

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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.