Home / 74,370.83-102,632.97-40,379.31

Finding the Fourth Proportional to 74,370.83, 102,632.97 and 40,379.31

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Solution

The fourth proportional to 74,370.83, 102,632.97 and 40,379.31 is: 55,724.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,370.83 : 102,632.97 = 40,379.31 : x
  2. Step 2: Convert to fraction form
    74,370.83/102,632.97 = 40,379.31/x
  3. Step 3: Cross multiply
    74,370.83x = 102,632.97 × 40,379.31
  4. Step 4: Simplify right side
    74,370.83x = 4,144,248,663.27
  5. Step 5: Solve for x
    x = 4,144,248,663.27/74,370.83
  6. Step 6: Final answer
    x = 55,724.12

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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.