Home / 65,821.38-90,835.23-40,327.26

Finding the Fourth Proportional to 65,821.38, 90,835.23 and 40,327.26

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Solution

The fourth proportional to 65,821.38, 90,835.23 and 40,327.26 is: 55,652.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,821.38 : 90,835.23 = 40,327.26 : x
  2. Step 2: Convert to fraction form
    65,821.38/90,835.23 = 40,327.26/x
  3. Step 3: Cross multiply
    65,821.38x = 90,835.23 × 40,327.26
  4. Step 4: Simplify right side
    65,821.38x = 3,663,135,937.37
  5. Step 5: Solve for x
    x = 3,663,135,937.37/65,821.38
  6. Step 6: Final answer
    x = 55,652.68

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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.