Home / 45,852.78-68,779.44-20,875.36

Finding the Fourth Proportional to 45,852.78, 68,779.44 and 20,875.36

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Solution

The fourth proportional to 45,852.78, 68,779.44 and 20,875.36 is: 31,313.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,852.78 : 68,779.44 = 20,875.36 : x
  2. Step 2: Convert to fraction form
    45,852.78/68,779.44 = 20,875.36/x
  3. Step 3: Cross multiply
    45,852.78x = 68,779.44 × 20,875.36
  4. Step 4: Simplify right side
    45,852.78x = 1,435,795,570.60
  5. Step 5: Solve for x
    x = 1,435,795,570.60/45,852.78
  6. Step 6: Final answer
    x = 31,313.16

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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.