Home / 70,999.36-106,397.55-52,131.36

Finding the Fourth Proportional to 70,999.36, 106,397.55 and 52,131.36

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Solution

The fourth proportional to 70,999.36, 106,397.55 and 52,131.36 is: 78,122.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,999.36 : 106,397.55 = 52,131.36 : x
  2. Step 2: Convert to fraction form
    70,999.36/106,397.55 = 52,131.36/x
  3. Step 3: Cross multiply
    70,999.36x = 106,397.55 × 52,131.36
  4. Step 4: Simplify right side
    70,999.36x = 5,546,648,932.29
  5. Step 5: Solve for x
    x = 5,546,648,932.29/70,999.36
  6. Step 6: Final answer
    x = 78,122.52

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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.