Home / 74,301.06-102,535.92-40,309.68

Finding the Fourth Proportional to 74,301.06, 102,535.92 and 40,309.68

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Solution

The fourth proportional to 74,301.06, 102,535.92 and 40,309.68 is: 55,627.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,301.06 : 102,535.92 = 40,309.68 : x
  2. Step 2: Convert to fraction form
    74,301.06/102,535.92 = 40,309.68/x
  3. Step 3: Cross multiply
    74,301.06x = 102,535.92 × 40,309.68
  4. Step 4: Simplify right side
    74,301.06x = 4,133,190,123.71
  5. Step 5: Solve for x
    x = 4,133,190,123.71/74,301.06
  6. Step 6: Final answer
    x = 55,627.61

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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.