Home / 105,575.52-145,694.40-57,828.96

Finding the Fourth Proportional to 105,575.52, 145,694.40 and 57,828.96

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Solution

The fourth proportional to 105,575.52, 145,694.40 and 57,828.96 is: 79,804.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,575.52 : 145,694.40 = 57,828.96 : x
  2. Step 2: Convert to fraction form
    105,575.52/145,694.40 = 57,828.96/x
  3. Step 3: Cross multiply
    105,575.52x = 145,694.40 × 57,828.96
  4. Step 4: Simplify right side
    105,575.52x = 8,425,355,629.82
  5. Step 5: Solve for x
    x = 8,425,355,629.82/105,575.52
  6. Step 6: Final answer
    x = 79,804.06

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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.