Home / 85,217.76-117,601.36-46,978.79

Finding the Fourth Proportional to 85,217.76, 117,601.36 and 46,978.79

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Solution

The fourth proportional to 85,217.76, 117,601.36 and 46,978.79 is: 64,831.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,217.76 : 117,601.36 = 46,978.79 : x
  2. Step 2: Convert to fraction form
    85,217.76/117,601.36 = 46,978.79/x
  3. Step 3: Cross multiply
    85,217.76x = 117,601.36 × 46,978.79
  4. Step 4: Simplify right side
    85,217.76x = 5,524,768,889.70
  5. Step 5: Solve for x
    x = 5,524,768,889.70/85,217.76
  6. Step 6: Final answer
    x = 64,831.19

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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.