Home / 80,262.12-120,282.47-60,518.98

Finding the Fourth Proportional to 80,262.12, 120,282.47 and 60,518.98

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Solution

The fourth proportional to 80,262.12, 120,282.47 and 60,518.98 is: 90,694.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,262.12 : 120,282.47 = 60,518.98 : x
  2. Step 2: Convert to fraction form
    80,262.12/120,282.47 = 60,518.98/x
  3. Step 3: Cross multiply
    80,262.12x = 120,282.47 × 60,518.98
  4. Step 4: Simplify right side
    80,262.12x = 7,279,371,792.98
  5. Step 5: Solve for x
    x = 7,279,371,792.98/80,262.12
  6. Step 6: Final answer
    x = 90,694.99

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1.5x scale

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.