Home / 45,495.04-68,243.12-13,905.76

Finding the Fourth Proportional to 45,495.04, 68,243.12 and 13,905.76

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Solution

The fourth proportional to 45,495.04, 68,243.12 and 13,905.76 is: 20,858.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,495.04 : 68,243.12 = 13,905.76 : x
  2. Step 2: Convert to fraction form
    45,495.04/68,243.12 = 13,905.76/x
  3. Step 3: Cross multiply
    45,495.04x = 68,243.12 × 13,905.76
  4. Step 4: Simplify right side
    45,495.04x = 948,972,448.37
  5. Step 5: Solve for x
    x = 948,972,448.37/45,495.04
  6. Step 6: Final answer
    x = 20,858.81

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1.5x scale

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.