Home / 53,619.20-80,438.40-22,457.60

Finding the Fourth Proportional to 53,619.20, 80,438.40 and 22,457.60

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Solution

The fourth proportional to 53,619.20, 80,438.40 and 22,457.60 is: 33,690.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,619.20 : 80,438.40 = 22,457.60 : x
  2. Step 2: Convert to fraction form
    53,619.20/80,438.40 = 22,457.60/x
  3. Step 3: Cross multiply
    53,619.20x = 80,438.40 × 22,457.60
  4. Step 4: Simplify right side
    53,619.20x = 1,806,453,411.84
  5. Step 5: Solve for x
    x = 1,806,453,411.84/53,619.20
  6. Step 6: Final answer
    x = 33,690.42

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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.