Home / 43,707.20-65,555.76-12,119.60

Finding the Fourth Proportional to 43,707.20, 65,555.76 and 12,119.60

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Solution

The fourth proportional to 43,707.20, 65,555.76 and 12,119.60 is: 18,178.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,707.20 : 65,555.76 = 12,119.60 : x
  2. Step 2: Convert to fraction form
    43,707.20/65,555.76 = 12,119.60/x
  3. Step 3: Cross multiply
    43,707.20x = 65,555.76 × 12,119.60
  4. Step 4: Simplify right side
    43,707.20x = 794,509,588.90
  5. Step 5: Solve for x
    x = 794,509,588.90/43,707.20
  6. Step 6: Final answer
    x = 18,178.00

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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.