Home / 70,412.36-97,172.94-40,207.39

Finding the Fourth Proportional to 70,412.36, 97,172.94 and 40,207.39

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Solution

The fourth proportional to 70,412.36, 97,172.94 and 40,207.39 is: 55,488.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,412.36 : 97,172.94 = 40,207.39 : x
  2. Step 2: Convert to fraction form
    70,412.36/97,172.94 = 40,207.39/x
  3. Step 3: Cross multiply
    70,412.36x = 97,172.94 × 40,207.39
  4. Step 4: Simplify right side
    70,412.36x = 3,907,070,203.87
  5. Step 5: Solve for x
    x = 3,907,070,203.87/70,412.36
  6. Step 6: Final answer
    x = 55,488.42

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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.