Home / 75,155.04-103,690.44-43,319.64

Finding the Fourth Proportional to 75,155.04, 103,690.44 and 43,319.64

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Solution

The fourth proportional to 75,155.04, 103,690.44 and 43,319.64 is: 59,767.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,155.04 : 103,690.44 = 43,319.64 : x
  2. Step 2: Convert to fraction form
    75,155.04/103,690.44 = 43,319.64/x
  3. Step 3: Cross multiply
    75,155.04x = 103,690.44 × 43,319.64
  4. Step 4: Simplify right side
    75,155.04x = 4,491,832,532.24
  5. Step 5: Solve for x
    x = 4,491,832,532.24/75,155.04
  6. Step 6: Final answer
    x = 59,767.55

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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.