Home / 64,769.59-97,157.86-20,399.81

Finding the Fourth Proportional to 64,769.59, 97,157.86 and 20,399.81

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Solution

The fourth proportional to 64,769.59, 97,157.86 and 20,399.81 is: 30,600.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,769.59 : 97,157.86 = 20,399.81 : x
  2. Step 2: Convert to fraction form
    64,769.59/97,157.86 = 20,399.81/x
  3. Step 3: Cross multiply
    64,769.59x = 97,157.86 × 20,399.81
  4. Step 4: Simplify right side
    64,769.59x = 1,982,001,884.01
  5. Step 5: Solve for x
    x = 1,982,001,884.01/64,769.59
  6. Step 6: Final answer
    x = 30,600.81

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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.