Home / 74,722.26-103,118.64-42,455.81

Finding the Fourth Proportional to 74,722.26, 103,118.64 and 42,455.81

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Solution

The fourth proportional to 74,722.26, 103,118.64 and 42,455.81 is: 58,590.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,722.26 : 103,118.64 = 42,455.81 : x
  2. Step 2: Convert to fraction form
    74,722.26/103,118.64 = 42,455.81/x
  3. Step 3: Cross multiply
    74,722.26x = 103,118.64 × 42,455.81
  4. Step 4: Simplify right side
    74,722.26x = 4,377,984,659.43
  5. Step 5: Solve for x
    x = 4,377,984,659.43/74,722.26
  6. Step 6: Final answer
    x = 58,590.10

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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.