Home / 74,501.44-102,812.20-40,509.94

Finding the Fourth Proportional to 74,501.44, 102,812.20 and 40,509.94

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Solution

The fourth proportional to 74,501.44, 102,812.20 and 40,509.94 is: 55,903.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,501.44 : 102,812.20 = 40,509.94 : x
  2. Step 2: Convert to fraction form
    74,501.44/102,812.20 = 40,509.94/x
  3. Step 3: Cross multiply
    74,501.44x = 102,812.20 × 40,509.94
  4. Step 4: Simplify right side
    74,501.44x = 4,164,916,053.27
  5. Step 5: Solve for x
    x = 4,164,916,053.27/74,501.44
  6. Step 6: Final answer
    x = 55,903.83

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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.