Home / 90,729.08-125,199.02-50,440.39

Finding the Fourth Proportional to 90,729.08, 125,199.02 and 50,440.39

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Solution

The fourth proportional to 90,729.08, 125,199.02 and 50,440.39 is: 69,603.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,729.08 : 125,199.02 = 50,440.39 : x
  2. Step 2: Convert to fraction form
    90,729.08/125,199.02 = 50,440.39/x
  3. Step 3: Cross multiply
    90,729.08x = 125,199.02 × 50,440.39
  4. Step 4: Simplify right side
    90,729.08x = 6,315,087,396.42
  5. Step 5: Solve for x
    x = 6,315,087,396.42/90,729.08
  6. Step 6: Final answer
    x = 69,603.79

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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.