Home / 72,950.43-109,437.36-30,830.94

Finding the Fourth Proportional to 72,950.43, 109,437.36 and 30,830.94

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Solution

The fourth proportional to 72,950.43, 109,437.36 and 30,830.94 is: 46,251.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,950.43 : 109,437.36 = 30,830.94 : x
  2. Step 2: Convert to fraction form
    72,950.43/109,437.36 = 30,830.94/x
  3. Step 3: Cross multiply
    72,950.43x = 109,437.36 × 30,830.94
  4. Step 4: Simplify right side
    72,950.43x = 3,374,056,679.92
  5. Step 5: Solve for x
    x = 3,374,056,679.92/72,950.43
  6. Step 6: Final answer
    x = 46,251.36

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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.