Home / 80,598.98-111,280.83-72,074.54

Finding the Fourth Proportional to 80,598.98, 111,280.83 and 72,074.54

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Solution

The fourth proportional to 80,598.98, 111,280.83 and 72,074.54 is: 99,511.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,598.98 : 111,280.83 = 72,074.54 : x
  2. Step 2: Convert to fraction form
    80,598.98/111,280.83 = 72,074.54/x
  3. Step 3: Cross multiply
    80,598.98x = 111,280.83 × 72,074.54
  4. Step 4: Simplify right side
    80,598.98x = 8,020,514,633.07
  5. Step 5: Solve for x
    x = 8,020,514,633.07/80,598.98
  6. Step 6: Final answer
    x = 99,511.37

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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.