Home / 75,415.48-113,170.91-42,157.39

Finding the Fourth Proportional to 75,415.48, 113,170.91 and 42,157.39

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Solution

The fourth proportional to 75,415.48, 113,170.91 and 42,157.39 is: 63,262.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,415.48 : 113,170.91 = 42,157.39 : x
  2. Step 2: Convert to fraction form
    75,415.48/113,170.91 = 42,157.39/x
  3. Step 3: Cross multiply
    75,415.48x = 113,170.91 × 42,157.39
  4. Step 4: Simplify right side
    75,415.48x = 4,770,989,695.81
  5. Step 5: Solve for x
    x = 4,770,989,695.81/75,415.48
  6. Step 6: Final answer
    x = 63,262.74

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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.