Home / 65,701.36-90,561.36-51,336.08

Finding the Fourth Proportional to 65,701.36, 90,561.36 and 51,336.08

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Solution

The fourth proportional to 65,701.36, 90,561.36 and 51,336.08 is: 70,760.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,701.36 : 90,561.36 = 51,336.08 : x
  2. Step 2: Convert to fraction form
    65,701.36/90,561.36 = 51,336.08/x
  3. Step 3: Cross multiply
    65,701.36x = 90,561.36 × 51,336.08
  4. Step 4: Simplify right side
    65,701.36x = 4,649,065,221.87
  5. Step 5: Solve for x
    x = 4,649,065,221.87/65,701.36
  6. Step 6: Final answer
    x = 70,760.56

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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.