Home / 77,515.94-106,973.12-43,531.79

Finding the Fourth Proportional to 77,515.94, 106,973.12 and 43,531.79

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Solution

The fourth proportional to 77,515.94, 106,973.12 and 43,531.79 is: 60,074.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,515.94 : 106,973.12 = 43,531.79 : x
  2. Step 2: Convert to fraction form
    77,515.94/106,973.12 = 43,531.79/x
  3. Step 3: Cross multiply
    77,515.94x = 106,973.12 × 43,531.79
  4. Step 4: Simplify right side
    77,515.94x = 4,656,730,969.45
  5. Step 5: Solve for x
    x = 4,656,730,969.45/77,515.94
  6. Step 6: Final answer
    x = 60,074.49

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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.