Home / 71,435.40-107,145.58-29,319.93

Finding the Fourth Proportional to 71,435.40, 107,145.58 and 29,319.93

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Solution

The fourth proportional to 71,435.40, 107,145.58 and 29,319.93 is: 43,976.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,435.40 : 107,145.58 = 29,319.93 : x
  2. Step 2: Convert to fraction form
    71,435.40/107,145.58 = 29,319.93/x
  3. Step 3: Cross multiply
    71,435.40x = 107,145.58 × 29,319.93
  4. Step 4: Simplify right side
    71,435.40x = 3,141,500,758.81
  5. Step 5: Solve for x
    x = 3,141,500,758.81/71,435.40
  6. Step 6: Final answer
    x = 43,976.81

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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.