Home / 72,721.44-109,070.01-20,136.24

Finding the Fourth Proportional to 72,721.44, 109,070.01 and 20,136.24

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Solution

The fourth proportional to 72,721.44, 109,070.01 and 20,136.24 is: 30,201.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,721.44 : 109,070.01 = 20,136.24 : x
  2. Step 2: Convert to fraction form
    72,721.44/109,070.01 = 20,136.24/x
  3. Step 3: Cross multiply
    72,721.44x = 109,070.01 × 20,136.24
  4. Step 4: Simplify right side
    72,721.44x = 2,196,259,898.16
  5. Step 5: Solve for x
    x = 2,196,259,898.16/72,721.44
  6. Step 6: Final answer
    x = 30,201.00

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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.