Home / 45,122.37-67,638.95-21,388.25

Finding the Fourth Proportional to 45,122.37, 67,638.95 and 21,388.25

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Solution

The fourth proportional to 45,122.37, 67,638.95 and 21,388.25 is: 32,061.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,122.37 : 67,638.95 = 21,388.25 : x
  2. Step 2: Convert to fraction form
    45,122.37/67,638.95 = 21,388.25/x
  3. Step 3: Cross multiply
    45,122.37x = 67,638.95 × 21,388.25
  4. Step 4: Simplify right side
    45,122.37x = 1,446,678,914.70
  5. Step 5: Solve for x
    x = 1,446,678,914.70/45,122.37
  6. Step 6: Final answer
    x = 32,061.24

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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.