Home / 74,379.14-102,643.13-40,845.14

Finding the Fourth Proportional to 74,379.14, 102,643.13 and 40,845.14

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Solution

The fourth proportional to 74,379.14, 102,643.13 and 40,845.14 is: 56,366.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,379.14 : 102,643.13 = 40,845.14 : x
  2. Step 2: Convert to fraction form
    74,379.14/102,643.13 = 40,845.14/x
  3. Step 3: Cross multiply
    74,379.14x = 102,643.13 × 40,845.14
  4. Step 4: Simplify right side
    74,379.14x = 4,192,472,297.45
  5. Step 5: Solve for x
    x = 4,192,472,297.45/74,379.14
  6. Step 6: Final answer
    x = 56,366.24

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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.