Home / 65,826.96-90,802.21-40,344.76

Finding the Fourth Proportional to 65,826.96, 90,802.21 and 40,344.76

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Solution

The fourth proportional to 65,826.96, 90,802.21 and 40,344.76 is: 55,651.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,826.96 : 90,802.21 = 40,344.76 : x
  2. Step 2: Convert to fraction form
    65,826.96/90,802.21 = 40,344.76/x
  3. Step 3: Cross multiply
    65,826.96x = 90,802.21 × 40,344.76
  4. Step 4: Simplify right side
    65,826.96x = 3,663,393,369.92
  5. Step 5: Solve for x
    x = 3,663,393,369.92/65,826.96
  6. Step 6: Final answer
    x = 55,651.87

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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.