Home / 75,459.38-113,212.76-31,107.02

Finding the Fourth Proportional to 75,459.38, 113,212.76 and 31,107.02

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Solution

The fourth proportional to 75,459.38, 113,212.76 and 31,107.02 is: 46,670.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,459.38 : 113,212.76 = 31,107.02 : x
  2. Step 2: Convert to fraction form
    75,459.38/113,212.76 = 31,107.02/x
  3. Step 3: Cross multiply
    75,459.38x = 113,212.76 × 31,107.02
  4. Step 4: Simplify right side
    75,459.38x = 3,521,710,867.98
  5. Step 5: Solve for x
    x = 3,521,710,867.98/75,459.38
  6. Step 6: Final answer
    x = 46,670.29

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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.