Home / 70,075.24-105,112.86-34,979.56

Finding the Fourth Proportional to 70,075.24, 105,112.86 and 34,979.56

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Solution

The fourth proportional to 70,075.24, 105,112.86 and 34,979.56 is: 52,469.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,075.24 : 105,112.86 = 34,979.56 : x
  2. Step 2: Convert to fraction form
    70,075.24/105,112.86 = 34,979.56/x
  3. Step 3: Cross multiply
    70,075.24x = 105,112.86 × 34,979.56
  4. Step 4: Simplify right side
    70,075.24x = 3,676,801,593.14
  5. Step 5: Solve for x
    x = 3,676,801,593.14/70,075.24
  6. Step 6: Final answer
    x = 52,469.34

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1.5x scale

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.