Home / 74,579.27-102,919.41-40,587.89

Finding the Fourth Proportional to 74,579.27, 102,919.41 and 40,587.89

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Solution

The fourth proportional to 74,579.27, 102,919.41 and 40,587.89 is: 56,011.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,579.27 : 102,919.41 = 40,587.89 : x
  2. Step 2: Convert to fraction form
    74,579.27/102,919.41 = 40,587.89/x
  3. Step 3: Cross multiply
    74,579.27x = 102,919.41 × 40,587.89
  4. Step 4: Simplify right side
    74,579.27x = 4,177,281,177.35
  5. Step 5: Solve for x
    x = 4,177,281,177.35/74,579.27
  6. Step 6: Final answer
    x = 56,011.29

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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.