Home / 105,525.54-145,625.18-57,779.82

Finding the Fourth Proportional to 105,525.54, 145,625.18 and 57,779.82

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Solution

The fourth proportional to 105,525.54, 145,625.18 and 57,779.82 is: 79,736.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,525.54 : 145,625.18 = 57,779.82 : x
  2. Step 2: Convert to fraction form
    105,525.54/145,625.18 = 57,779.82/x
  3. Step 3: Cross multiply
    105,525.54x = 145,625.18 × 57,779.82
  4. Step 4: Simplify right side
    105,525.54x = 8,414,196,398.97
  5. Step 5: Solve for x
    x = 8,414,196,398.97/105,525.54
  6. Step 6: Final answer
    x = 79,736.11

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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.