Home / 90,721.16-125,197.91-49,883.16

Finding the Fourth Proportional to 90,721.16, 125,197.91 and 49,883.16

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Solution

The fourth proportional to 90,721.16, 125,197.91 and 49,883.16 is: 68,840.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,721.16 : 125,197.91 = 49,883.16 : x
  2. Step 2: Convert to fraction form
    90,721.16/125,197.91 = 49,883.16/x
  3. Step 3: Cross multiply
    90,721.16x = 125,197.91 × 49,883.16
  4. Step 4: Simplify right side
    90,721.16x = 6,245,267,126.78
  5. Step 5: Solve for x
    x = 6,245,267,126.78/90,721.16
  6. Step 6: Final answer
    x = 68,840.25

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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.