Home / 79,705.82-119,632.44-40,290.42

Finding the Fourth Proportional to 79,705.82, 119,632.44 and 40,290.42

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Solution

The fourth proportional to 79,705.82, 119,632.44 and 40,290.42 is: 60,472.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,705.82 : 119,632.44 = 40,290.42 : x
  2. Step 2: Convert to fraction form
    79,705.82/119,632.44 = 40,290.42/x
  3. Step 3: Cross multiply
    79,705.82x = 119,632.44 × 40,290.42
  4. Step 4: Simplify right side
    79,705.82x = 4,820,041,253.22
  5. Step 5: Solve for x
    x = 4,820,041,253.22/79,705.82
  6. Step 6: Final answer
    x = 60,472.89

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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.