Home / 65,808.24-90,812.76-40,310.64

Finding the Fourth Proportional to 65,808.24, 90,812.76 and 40,310.64

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Solution

The fourth proportional to 65,808.24, 90,812.76 and 40,310.64 is: 55,627.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,808.24 : 90,812.76 = 40,310.64 : x
  2. Step 2: Convert to fraction form
    65,808.24/90,812.76 = 40,310.64/x
  3. Step 3: Cross multiply
    65,808.24x = 90,812.76 × 40,310.64
  4. Step 4: Simplify right side
    65,808.24x = 3,660,720,475.77
  5. Step 5: Solve for x
    x = 3,660,720,475.77/65,808.24
  6. Step 6: Final answer
    x = 55,627.08

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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.