Home / 70,769.70-97,661.84-38,938.46

Finding the Fourth Proportional to 70,769.70, 97,661.84 and 38,938.46

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Solution

The fourth proportional to 70,769.70, 97,661.84 and 38,938.46 is: 53,734.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,769.70 : 97,661.84 = 38,938.46 : x
  2. Step 2: Convert to fraction form
    70,769.70/97,661.84 = 38,938.46/x
  3. Step 3: Cross multiply
    70,769.70x = 97,661.84 × 38,938.46
  4. Step 4: Simplify right side
    70,769.70x = 3,802,800,967.36
  5. Step 5: Solve for x
    x = 3,802,800,967.36/70,769.70
  6. Step 6: Final answer
    x = 53,734.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.