Home / 61,321.32-84,568.82-39,790.51

Finding the Fourth Proportional to 61,321.32, 84,568.82 and 39,790.51

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Solution

The fourth proportional to 61,321.32, 84,568.82 and 39,790.51 is: 54,875.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,321.32 : 84,568.82 = 39,790.51 : x
  2. Step 2: Convert to fraction form
    61,321.32/84,568.82 = 39,790.51/x
  3. Step 3: Cross multiply
    61,321.32x = 84,568.82 × 39,790.51
  4. Step 4: Simplify right side
    61,321.32x = 3,365,036,477.90
  5. Step 5: Solve for x
    x = 3,365,036,477.90/61,321.32
  6. Step 6: Final answer
    x = 54,875.47

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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.