Home / 43,245.36-64,866.84-12,079.76

Finding the Fourth Proportional to 43,245.36, 64,866.84 and 12,079.76

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Solution

The fourth proportional to 43,245.36, 64,866.84 and 12,079.76 is: 18,119.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,245.36 : 64,866.84 = 12,079.76 : x
  2. Step 2: Convert to fraction form
    43,245.36/64,866.84 = 12,079.76/x
  3. Step 3: Cross multiply
    43,245.36x = 64,866.84 × 12,079.76
  4. Step 4: Simplify right side
    43,245.36x = 783,575,859.16
  5. Step 5: Solve for x
    x = 783,575,859.16/43,245.36
  6. Step 6: Final answer
    x = 18,119.30

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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.