Home / 74,288.16-102,518.04-40,296.96

Finding the Fourth Proportional to 74,288.16, 102,518.04 and 40,296.96

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Solution

The fourth proportional to 74,288.16, 102,518.04 and 40,296.96 is: 55,610.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,288.16 : 102,518.04 = 40,296.96 : x
  2. Step 2: Convert to fraction form
    74,288.16/102,518.04 = 40,296.96/x
  3. Step 3: Cross multiply
    74,288.16x = 102,518.04 × 40,296.96
  4. Step 4: Simplify right side
    74,288.16x = 4,131,165,357.16
  5. Step 5: Solve for x
    x = 4,131,165,357.16/74,288.16
  6. Step 6: Final answer
    x = 55,610.01

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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.