Home / 90,968.72-125,532.86-50,686.88

Finding the Fourth Proportional to 90,968.72, 125,532.86 and 50,686.88

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Solution

The fourth proportional to 90,968.72, 125,532.86 and 50,686.88 is: 69,945.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,968.72 : 125,532.86 = 50,686.88 : x
  2. Step 2: Convert to fraction form
    90,968.72/125,532.86 = 50,686.88/x
  3. Step 3: Cross multiply
    90,968.72x = 125,532.86 × 50,686.88
  4. Step 4: Simplify right side
    90,968.72x = 6,362,868,129.78
  5. Step 5: Solve for x
    x = 6,362,868,129.78/90,968.72
  6. Step 6: Final answer
    x = 69,945.67

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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.