Home / 90,852.78-136,284.94-28,525.74

Finding the Fourth Proportional to 90,852.78, 136,284.94 and 28,525.74

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Solution

The fourth proportional to 90,852.78, 136,284.94 and 28,525.74 is: 42,790.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,852.78 : 136,284.94 = 28,525.74 : x
  2. Step 2: Convert to fraction form
    90,852.78/136,284.94 = 28,525.74/x
  3. Step 3: Cross multiply
    90,852.78x = 136,284.94 × 28,525.74
  4. Step 4: Simplify right side
    90,852.78x = 3,887,628,764.36
  5. Step 5: Solve for x
    x = 3,887,628,764.36/90,852.78
  6. Step 6: Final answer
    x = 42,790.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.