Home / 77,675.17-107,190.72-43,683.65

Finding the Fourth Proportional to 77,675.17, 107,190.72 and 43,683.65

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Solution

The fourth proportional to 77,675.17, 107,190.72 and 43,683.65 is: 60,282.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,675.17 : 107,190.72 = 43,683.65 : x
  2. Step 2: Convert to fraction form
    77,675.17/107,190.72 = 43,683.65/x
  3. Step 3: Cross multiply
    77,675.17x = 107,190.72 × 43,683.65
  4. Step 4: Simplify right side
    77,675.17x = 4,682,482,066.05
  5. Step 5: Solve for x
    x = 4,682,482,066.05/77,675.17
  6. Step 6: Final answer
    x = 60,282.87

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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.