Home / 68,295.40-102,456.78-28,852.36

Finding the Fourth Proportional to 68,295.40, 102,456.78 and 28,852.36

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Solution

The fourth proportional to 68,295.40, 102,456.78 and 28,852.36 is: 43,284.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,295.40 : 102,456.78 = 28,852.36 : x
  2. Step 2: Convert to fraction form
    68,295.40/102,456.78 = 28,852.36/x
  3. Step 3: Cross multiply
    68,295.40x = 102,456.78 × 28,852.36
  4. Step 4: Simplify right side
    68,295.40x = 2,956,119,901.00
  5. Step 5: Solve for x
    x = 2,956,119,901.00/68,295.40
  6. Step 6: Final answer
    x = 43,284.32

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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.