Home / 65,890.20-90,928.34-35,675.51

Finding the Fourth Proportional to 65,890.20, 90,928.34 and 35,675.51

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Solution

The fourth proportional to 65,890.20, 90,928.34 and 35,675.51 is: 49,232.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,890.20 : 90,928.34 = 35,675.51 : x
  2. Step 2: Convert to fraction form
    65,890.20/90,928.34 = 35,675.51/x
  3. Step 3: Cross multiply
    65,890.20x = 90,928.34 × 35,675.51
  4. Step 4: Simplify right side
    65,890.20x = 3,243,914,269.93
  5. Step 5: Solve for x
    x = 3,243,914,269.93/65,890.20
  6. Step 6: Final answer
    x = 49,232.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.