Home / 65,890.18-90,928.31-35,675.53

Finding the Fourth Proportional to 65,890.18, 90,928.31 and 35,675.53

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Solution

The fourth proportional to 65,890.18, 90,928.31 and 35,675.53 is: 49,232.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,890.18 : 90,928.31 = 35,675.53 : x
  2. Step 2: Convert to fraction form
    65,890.18/90,928.31 = 35,675.53/x
  3. Step 3: Cross multiply
    65,890.18x = 90,928.31 × 35,675.53
  4. Step 4: Simplify right side
    65,890.18x = 3,243,915,651.25
  5. Step 5: Solve for x
    x = 3,243,915,651.25/65,890.18
  6. Step 6: Final answer
    x = 49,232.16

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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.