Home / 64,949.81-97,427.56-20,579.84

Finding the Fourth Proportional to 64,949.81, 97,427.56 and 20,579.84

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Solution

The fourth proportional to 64,949.81, 97,427.56 and 20,579.84 is: 30,870.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,949.81 : 97,427.56 = 20,579.84 : x
  2. Step 2: Convert to fraction form
    64,949.81/97,427.56 = 20,579.84/x
  3. Step 3: Cross multiply
    64,949.81x = 97,427.56 × 20,579.84
  4. Step 4: Simplify right side
    64,949.81x = 2,005,043,057.80
  5. Step 5: Solve for x
    x = 2,005,043,057.80/64,949.81
  6. Step 6: Final answer
    x = 30,870.65

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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.