Home / 74,919.60-112,323.24-45,331.38

Finding the Fourth Proportional to 74,919.60, 112,323.24 and 45,331.38

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Solution

The fourth proportional to 74,919.60, 112,323.24 and 45,331.38 is: 67,963.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,919.60 : 112,323.24 = 45,331.38 : x
  2. Step 2: Convert to fraction form
    74,919.60/112,323.24 = 45,331.38/x
  3. Step 3: Cross multiply
    74,919.60x = 112,323.24 × 45,331.38
  4. Step 4: Simplify right side
    74,919.60x = 5,091,767,475.27
  5. Step 5: Solve for x
    x = 5,091,767,475.27/74,919.60
  6. Step 6: Final answer
    x = 67,963.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.