Home / 70,275.55-105,415.03-27,579.16

Finding the Fourth Proportional to 70,275.55, 105,415.03 and 27,579.16

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Solution

The fourth proportional to 70,275.55, 105,415.03 and 27,579.16 is: 41,369.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,275.55 : 105,415.03 = 27,579.16 : x
  2. Step 2: Convert to fraction form
    70,275.55/105,415.03 = 27,579.16/x
  3. Step 3: Cross multiply
    70,275.55x = 105,415.03 × 27,579.16
  4. Step 4: Simplify right side
    70,275.55x = 2,907,257,978.77
  5. Step 5: Solve for x
    x = 2,907,257,978.77/70,275.55
  6. Step 6: Final answer
    x = 41,369.41

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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.