Home / 74,722.03-103,115.73-40,730.52

Finding the Fourth Proportional to 74,722.03, 103,115.73 and 40,730.52

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Solution

The fourth proportional to 74,722.03, 103,115.73 and 40,730.52 is: 56,207.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,722.03 : 103,115.73 = 40,730.52 : x
  2. Step 2: Convert to fraction form
    74,722.03/103,115.73 = 40,730.52/x
  3. Step 3: Cross multiply
    74,722.03x = 103,115.73 × 40,730.52
  4. Step 4: Simplify right side
    74,722.03x = 4,199,957,262.48
  5. Step 5: Solve for x
    x = 4,199,957,262.48/74,722.03
  6. Step 6: Final answer
    x = 56,207.75

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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.