Home / 70,163.32-105,247.14-30,700.12

Finding the Fourth Proportional to 70,163.32, 105,247.14 and 30,700.12

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Solution

The fourth proportional to 70,163.32, 105,247.14 and 30,700.12 is: 46,051.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,163.32 : 105,247.14 = 30,700.12 : x
  2. Step 2: Convert to fraction form
    70,163.32/105,247.14 = 30,700.12/x
  3. Step 3: Cross multiply
    70,163.32x = 105,247.14 × 30,700.12
  4. Step 4: Simplify right side
    70,163.32x = 3,231,099,827.66
  5. Step 5: Solve for x
    x = 3,231,099,827.66/70,163.32
  6. Step 6: Final answer
    x = 46,051.13

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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.