Home / 71,664.58-98,899.48-39,400.56

Finding the Fourth Proportional to 71,664.58, 98,899.48 and 39,400.56

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Solution

The fourth proportional to 71,664.58, 98,899.48 and 39,400.56 is: 54,374.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,664.58 : 98,899.48 = 39,400.56 : x
  2. Step 2: Convert to fraction form
    71,664.58/98,899.48 = 39,400.56/x
  3. Step 3: Cross multiply
    71,664.58x = 98,899.48 × 39,400.56
  4. Step 4: Simplify right side
    71,664.58x = 3,896,694,944.96
  5. Step 5: Solve for x
    x = 3,896,694,944.96/71,664.58
  6. Step 6: Final answer
    x = 54,374.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.