Home / 80,440.47-111,010.83-48,603.21

Finding the Fourth Proportional to 80,440.47, 111,010.83 and 48,603.21

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Solution

The fourth proportional to 80,440.47, 111,010.83 and 48,603.21 is: 67,074.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,440.47 : 111,010.83 = 48,603.21 : x
  2. Step 2: Convert to fraction form
    80,440.47/111,010.83 = 48,603.21/x
  3. Step 3: Cross multiply
    80,440.47x = 111,010.83 × 48,603.21
  4. Step 4: Simplify right side
    80,440.47x = 5,395,482,682.76
  5. Step 5: Solve for x
    x = 5,395,482,682.76/80,440.47
  6. Step 6: Final answer
    x = 67,074.23

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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.