Home / 85,296.42-117,708.78-51,324.69

Finding the Fourth Proportional to 85,296.42, 117,708.78 and 51,324.69

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Solution

The fourth proportional to 85,296.42, 117,708.78 and 51,324.69 is: 70,827.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,296.42 : 117,708.78 = 51,324.69 : x
  2. Step 2: Convert to fraction form
    85,296.42/117,708.78 = 51,324.69/x
  3. Step 3: Cross multiply
    85,296.42x = 117,708.78 × 51,324.69
  4. Step 4: Simplify right side
    85,296.42x = 6,041,366,643.78
  5. Step 5: Solve for x
    x = 6,041,366,643.78/85,296.42
  6. Step 6: Final answer
    x = 70,827.90

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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.