Home / 45,355.75-68,010.30-20,374.37

Finding the Fourth Proportional to 45,355.75, 68,010.30 and 20,374.37

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Solution

The fourth proportional to 45,355.75, 68,010.30 and 20,374.37 is: 30,551.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,355.75 : 68,010.30 = 20,374.37 : x
  2. Step 2: Convert to fraction form
    45,355.75/68,010.30 = 20,374.37/x
  3. Step 3: Cross multiply
    45,355.75x = 68,010.30 × 20,374.37
  4. Step 4: Simplify right side
    45,355.75x = 1,385,666,931.00
  5. Step 5: Solve for x
    x = 1,385,666,931.00/45,355.75
  6. Step 6: Final answer
    x = 30,551.08

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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.