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Finding the Fourth Proportional to 74,495.19, 102,801.87 and 40,504.35

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Solution

The fourth proportional to 74,495.19, 102,801.87 and 40,504.35 is: 55,895.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,495.19 : 102,801.87 = 40,504.35 : x
  2. Step 2: Convert to fraction form
    74,495.19/102,801.87 = 40,504.35/x
  3. Step 3: Cross multiply
    74,495.19x = 102,801.87 × 40,504.35
  4. Step 4: Simplify right side
    74,495.19x = 4,163,922,923.13
  5. Step 5: Solve for x
    x = 4,163,922,923.13/74,495.19
  6. Step 6: Final answer
    x = 55,895.19

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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.