Home / 80,671.14-111,303.67-48,385.55

Finding the Fourth Proportional to 80,671.14, 111,303.67 and 48,385.55

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Solution

The fourth proportional to 80,671.14, 111,303.67 and 48,385.55 is: 66,758.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,671.14 : 111,303.67 = 48,385.55 : x
  2. Step 2: Convert to fraction form
    80,671.14/111,303.67 = 48,385.55/x
  3. Step 3: Cross multiply
    80,671.14x = 111,303.67 × 48,385.55
  4. Step 4: Simplify right side
    80,671.14x = 5,385,489,537.99
  5. Step 5: Solve for x
    x = 5,385,489,537.99/80,671.14
  6. Step 6: Final answer
    x = 66,758.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.