Home / 90,989.37-125,574.53-50,709.69

Finding the Fourth Proportional to 90,989.37, 125,574.53 and 50,709.69

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Solution

The fourth proportional to 90,989.37, 125,574.53 and 50,709.69 is: 69,984.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,989.37 : 125,574.53 = 50,709.69 : x
  2. Step 2: Convert to fraction form
    90,989.37/125,574.53 = 50,709.69/x
  3. Step 3: Cross multiply
    90,989.37x = 125,574.53 × 50,709.69
  4. Step 4: Simplify right side
    90,989.37x = 6,367,845,234.65
  5. Step 5: Solve for x
    x = 6,367,845,234.65/90,989.37
  6. Step 6: Final answer
    x = 69,984.50

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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.