Home / 75,176.48-103,742.16-43,346.72

Finding the Fourth Proportional to 75,176.48, 103,742.16 and 43,346.72

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Solution

The fourth proportional to 75,176.48, 103,742.16 and 43,346.72 is: 59,817.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,176.48 : 103,742.16 = 43,346.72 : x
  2. Step 2: Convert to fraction form
    75,176.48/103,742.16 = 43,346.72/x
  3. Step 3: Cross multiply
    75,176.48x = 103,742.16 × 43,346.72
  4. Step 4: Simplify right side
    75,176.48x = 4,496,882,361.72
  5. Step 5: Solve for x
    x = 4,496,882,361.72/75,176.48
  6. Step 6: Final answer
    x = 59,817.68

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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.