Home / 70,715.36-97,496.61-57,921.41

Finding the Fourth Proportional to 70,715.36, 97,496.61 and 57,921.41

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Solution

The fourth proportional to 70,715.36, 97,496.61 and 57,921.41 is: 79,857.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,715.36 : 97,496.61 = 57,921.41 : x
  2. Step 2: Convert to fraction form
    70,715.36/97,496.61 = 57,921.41/x
  3. Step 3: Cross multiply
    70,715.36x = 97,496.61 × 57,921.41
  4. Step 4: Simplify right side
    70,715.36x = 5,647,141,121.42
  5. Step 5: Solve for x
    x = 5,647,141,121.42/70,715.36
  6. Step 6: Final answer
    x = 79,857.35

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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.