Home / 85,295.07-117,728.78-49,480.52

Finding the Fourth Proportional to 85,295.07, 117,728.78 and 49,480.52

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Solution

The fourth proportional to 85,295.07, 117,728.78 and 49,480.52 is: 68,295.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,295.07 : 117,728.78 = 49,480.52 : x
  2. Step 2: Convert to fraction form
    85,295.07/117,728.78 = 49,480.52/x
  3. Step 3: Cross multiply
    85,295.07x = 117,728.78 × 49,480.52
  4. Step 4: Simplify right side
    85,295.07x = 5,825,280,417.32
  5. Step 5: Solve for x
    x = 5,825,280,417.32/85,295.07
  6. Step 6: Final answer
    x = 68,295.63

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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.