Home / 90,729.75-125,207.07-50,985.75

Finding the Fourth Proportional to 90,729.75, 125,207.07 and 50,985.75

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Solution

The fourth proportional to 90,729.75, 125,207.07 and 50,985.75 is: 70,360.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,729.75 : 125,207.07 = 50,985.75 : x
  2. Step 2: Convert to fraction form
    90,729.75/125,207.07 = 50,985.75/x
  3. Step 3: Cross multiply
    90,729.75x = 125,207.07 × 50,985.75
  4. Step 4: Simplify right side
    90,729.75x = 6,383,776,369.25
  5. Step 5: Solve for x
    x = 6,383,776,369.25/90,729.75
  6. Step 6: Final answer
    x = 70,360.34

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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.