Home / 43,665.88-65,502.78-12,077.92

Finding the Fourth Proportional to 43,665.88, 65,502.78 and 12,077.92

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Solution

The fourth proportional to 43,665.88, 65,502.78 and 12,077.92 is: 18,117.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,665.88 : 65,502.78 = 12,077.92 : x
  2. Step 2: Convert to fraction form
    43,665.88/65,502.78 = 12,077.92/x
  3. Step 3: Cross multiply
    43,665.88x = 65,502.78 × 12,077.92
  4. Step 4: Simplify right side
    43,665.88x = 791,137,336.62
  5. Step 5: Solve for x
    x = 791,137,336.62/43,665.88
  6. Step 6: Final answer
    x = 18,117.98

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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.