Home / 75,051.54-112,511.07-28,271.70

Finding the Fourth Proportional to 75,051.54, 112,511.07 and 28,271.70

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Solution

The fourth proportional to 75,051.54, 112,511.07 and 28,271.70 is: 42,382.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,051.54 : 112,511.07 = 28,271.70 : x
  2. Step 2: Convert to fraction form
    75,051.54/112,511.07 = 28,271.70/x
  3. Step 3: Cross multiply
    75,051.54x = 112,511.07 × 28,271.70
  4. Step 4: Simplify right side
    75,051.54x = 3,180,879,217.72
  5. Step 5: Solve for x
    x = 3,180,879,217.72/75,051.54
  6. Step 6: Final answer
    x = 42,382.60

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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.