Home / 75,063.36-104,076.90-71,512.32

Finding the Fourth Proportional to 75,063.36, 104,076.90 and 71,512.32

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Solution

The fourth proportional to 75,063.36, 104,076.90 and 71,512.32 is: 99,153.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,063.36 : 104,076.90 = 71,512.32 : x
  2. Step 2: Convert to fraction form
    75,063.36/104,076.90 = 71,512.32/x
  3. Step 3: Cross multiply
    75,063.36x = 104,076.90 × 71,512.32
  4. Step 4: Simplify right side
    75,063.36x = 7,442,780,577.41
  5. Step 5: Solve for x
    x = 7,442,780,577.41/75,063.36
  6. Step 6: Final answer
    x = 99,153.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.