Home / 74,579.72-102,919.01-40,587.82

Finding the Fourth Proportional to 74,579.72, 102,919.01 and 40,587.82

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Solution

The fourth proportional to 74,579.72, 102,919.01 and 40,587.82 is: 56,010.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,579.72 : 102,919.01 = 40,587.82 : x
  2. Step 2: Convert to fraction form
    74,579.72/102,919.01 = 40,587.82/x
  3. Step 3: Cross multiply
    74,579.72x = 102,919.01 × 40,587.82
  4. Step 4: Simplify right side
    74,579.72x = 4,177,257,792.22
  5. Step 5: Solve for x
    x = 4,177,257,792.22/74,579.72
  6. Step 6: Final answer
    x = 56,010.64

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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.