Home / 45,074.40-67,611.60-21,703.20

Finding the Fourth Proportional to 45,074.40, 67,611.60 and 21,703.20

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Solution

The fourth proportional to 45,074.40, 67,611.60 and 21,703.20 is: 32,554.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,074.40 : 67,611.60 = 21,703.20 : x
  2. Step 2: Convert to fraction form
    45,074.40/67,611.60 = 21,703.20/x
  3. Step 3: Cross multiply
    45,074.40x = 67,611.60 × 21,703.20
  4. Step 4: Simplify right side
    45,074.40x = 1,467,388,077.12
  5. Step 5: Solve for x
    x = 1,467,388,077.12/45,074.40
  6. Step 6: Final answer
    x = 32,554.80

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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.