Home / 75,835.86-113,783.25-31,451.28

Finding the Fourth Proportional to 75,835.86, 113,783.25 and 31,451.28

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Solution

The fourth proportional to 75,835.86, 113,783.25 and 31,451.28 is: 47,189.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,835.86 : 113,783.25 = 31,451.28 : x
  2. Step 2: Convert to fraction form
    75,835.86/113,783.25 = 31,451.28/x
  3. Step 3: Cross multiply
    75,835.86x = 113,783.25 × 31,451.28
  4. Step 4: Simplify right side
    75,835.86x = 3,578,628,855.06
  5. Step 5: Solve for x
    x = 3,578,628,855.06/75,835.86
  6. Step 6: Final answer
    x = 47,189.14

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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.