Home / 90,836.72-125,343.48-50,539.76

Finding the Fourth Proportional to 90,836.72, 125,343.48 and 50,539.76

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Solution

The fourth proportional to 90,836.72, 125,343.48 and 50,539.76 is: 69,738.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,836.72 : 125,343.48 = 50,539.76 : x
  2. Step 2: Convert to fraction form
    90,836.72/125,343.48 = 50,539.76/x
  3. Step 3: Cross multiply
    90,836.72x = 125,343.48 × 50,539.76
  4. Step 4: Simplify right side
    90,836.72x = 6,334,829,396.76
  5. Step 5: Solve for x
    x = 6,334,829,396.76/90,836.72
  6. Step 6: Final answer
    x = 69,738.64

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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.