Home / 77,673.32-107,188.16-43,681.80

Finding the Fourth Proportional to 77,673.32, 107,188.16 and 43,681.80

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Solution

The fourth proportional to 77,673.32, 107,188.16 and 43,681.80 is: 60,280.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,673.32 : 107,188.16 = 43,681.80 : x
  2. Step 2: Convert to fraction form
    77,673.32/107,188.16 = 43,681.80/x
  3. Step 3: Cross multiply
    77,673.32x = 107,188.16 × 43,681.80
  4. Step 4: Simplify right side
    77,673.32x = 4,682,171,767.49
  5. Step 5: Solve for x
    x = 4,682,171,767.49/77,673.32
  6. Step 6: Final answer
    x = 60,280.31

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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.