Home / 85,563.08-128,330.04-23,219

Finding the Fourth Proportional to 85,563.08, 128,330.04 and 23,219

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Solution

The fourth proportional to 85,563.08, 128,330.04 and 23,219 is: 34,824.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,563.08 : 128,330.04 = 23,219 : x
  2. Step 2: Convert to fraction form
    85,563.08/128,330.04 = 23,219/x
  3. Step 3: Cross multiply
    85,563.08x = 128,330.04 × 23,219
  4. Step 4: Simplify right side
    85,563.08x = 2,979,695,198.76
  5. Step 5: Solve for x
    x = 2,979,695,198.76/85,563.08
  6. Step 6: Final answer
    x = 34,824.54

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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.