Home / 81,477.43-112,228.53-57,562.58

Finding the Fourth Proportional to 81,477.43, 112,228.53 and 57,562.58

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Solution

The fourth proportional to 81,477.43, 112,228.53 and 57,562.58 is: 79,287.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,477.43 : 112,228.53 = 57,562.58 : x
  2. Step 2: Convert to fraction form
    81,477.43/112,228.53 = 57,562.58/x
  3. Step 3: Cross multiply
    81,477.43x = 112,228.53 × 57,562.58
  4. Step 4: Simplify right side
    81,477.43x = 6,460,163,736.41
  5. Step 5: Solve for x
    x = 6,460,163,736.41/81,477.43
  6. Step 6: Final answer
    x = 79,287.77

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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.