Home / 57,457.20-86,126.36-21,908.96

Finding the Fourth Proportional to 57,457.20, 86,126.36 and 21,908.96

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Solution

The fourth proportional to 57,457.20, 86,126.36 and 21,908.96 is: 32,840.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,457.20 : 86,126.36 = 21,908.96 : x
  2. Step 2: Convert to fraction form
    57,457.20/86,126.36 = 21,908.96/x
  3. Step 3: Cross multiply
    57,457.20x = 86,126.36 × 21,908.96
  4. Step 4: Simplify right side
    57,457.20x = 1,886,938,436.01
  5. Step 5: Solve for x
    x = 1,886,938,436.01/57,457.20
  6. Step 6: Final answer
    x = 32,840.77

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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.