Home / 85,610.24-128,420.64-33,019.04

Finding the Fourth Proportional to 85,610.24, 128,420.64 and 33,019.04

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Solution

The fourth proportional to 85,610.24, 128,420.64 and 33,019.04 is: 49,530.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,610.24 : 128,420.64 = 33,019.04 : x
  2. Step 2: Convert to fraction form
    85,610.24/128,420.64 = 33,019.04/x
  3. Step 3: Cross multiply
    85,610.24x = 128,420.64 × 33,019.04
  4. Step 4: Simplify right side
    85,610.24x = 4,240,326,248.99
  5. Step 5: Solve for x
    x = 4,240,326,248.99/85,610.24
  6. Step 6: Final answer
    x = 49,530.60

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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.