Home / 80,161.45-120,038.76-48,120.58

Finding the Fourth Proportional to 80,161.45, 120,038.76 and 48,120.58

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Solution

The fourth proportional to 80,161.45, 120,038.76 and 48,120.58 is: 72,058.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,161.45 : 120,038.76 = 48,120.58 : x
  2. Step 2: Convert to fraction form
    80,161.45/120,038.76 = 48,120.58/x
  3. Step 3: Cross multiply
    80,161.45x = 120,038.76 × 48,120.58
  4. Step 4: Simplify right side
    80,161.45x = 5,776,334,903.73
  5. Step 5: Solve for x
    x = 5,776,334,903.73/80,161.45
  6. Step 6: Final answer
    x = 72,058.76

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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.