Home / 80,511.72-111,106.44-44,701.80

Finding the Fourth Proportional to 80,511.72, 111,106.44 and 44,701.80

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Solution

The fourth proportional to 80,511.72, 111,106.44 and 44,701.80 is: 61,688.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,511.72 : 111,106.44 = 44,701.80 : x
  2. Step 2: Convert to fraction form
    80,511.72/111,106.44 = 44,701.80/x
  3. Step 3: Cross multiply
    80,511.72x = 111,106.44 × 44,701.80
  4. Step 4: Simplify right side
    80,511.72x = 4,966,657,859.59
  5. Step 5: Solve for x
    x = 4,966,657,859.59/80,511.72
  6. Step 6: Final answer
    x = 61,688.63

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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.