Home / 65,608.09-90,582.75-50,474.05

Finding the Fourth Proportional to 65,608.09, 90,582.75 and 50,474.05

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Solution

The fourth proportional to 65,608.09, 90,582.75 and 50,474.05 is: 69,687.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,608.09 : 90,582.75 = 50,474.05 : x
  2. Step 2: Convert to fraction form
    65,608.09/90,582.75 = 50,474.05/x
  3. Step 3: Cross multiply
    65,608.09x = 90,582.75 × 50,474.05
  4. Step 4: Simplify right side
    65,608.09x = 4,572,078,252.64
  5. Step 5: Solve for x
    x = 4,572,078,252.64/65,608.09
  6. Step 6: Final answer
    x = 69,687.72

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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.