Home / 85,586.37-128,386.91-22,406.23

Finding the Fourth Proportional to 85,586.37, 128,386.91 and 22,406.23

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Solution

The fourth proportional to 85,586.37, 128,386.91 and 22,406.23 is: 33,611.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,586.37 : 128,386.91 = 22,406.23 : x
  2. Step 2: Convert to fraction form
    85,586.37/128,386.91 = 22,406.23/x
  3. Step 3: Cross multiply
    85,586.37x = 128,386.91 × 22,406.23
  4. Step 4: Simplify right side
    85,586.37x = 2,876,666,522.42
  5. Step 5: Solve for x
    x = 2,876,666,522.42/85,586.37
  6. Step 6: Final answer
    x = 33,611.27

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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.