Home / 65,490.36-90,376.68-37,195.96

Finding the Fourth Proportional to 65,490.36, 90,376.68 and 37,195.96

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Solution

The fourth proportional to 65,490.36, 90,376.68 and 37,195.96 is: 51,330.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,490.36 : 90,376.68 = 37,195.96 : x
  2. Step 2: Convert to fraction form
    65,490.36/90,376.68 = 37,195.96/x
  3. Step 3: Cross multiply
    65,490.36x = 90,376.68 × 37,195.96
  4. Step 4: Simplify right side
    65,490.36x = 3,361,647,374.21
  5. Step 5: Solve for x
    x = 3,361,647,374.21/65,490.36
  6. Step 6: Final answer
    x = 51,330.42

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1.5x scale

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.