Home / 72,523.21-108,782.07-19,931.32

Finding the Fourth Proportional to 72,523.21, 108,782.07 and 19,931.32

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Solution

The fourth proportional to 72,523.21, 108,782.07 and 19,931.32 is: 29,896.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,523.21 : 108,782.07 = 19,931.32 : x
  2. Step 2: Convert to fraction form
    72,523.21/108,782.07 = 19,931.32/x
  3. Step 3: Cross multiply
    72,523.21x = 108,782.07 × 19,931.32
  4. Step 4: Simplify right side
    72,523.21x = 2,168,170,247.43
  5. Step 5: Solve for x
    x = 2,168,170,247.43/72,523.21
  6. Step 6: Final answer
    x = 29,896.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.