Home / 76,883.49-105,941.75-56,708.41

Finding the Fourth Proportional to 76,883.49, 105,941.75 and 56,708.41

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Solution

The fourth proportional to 76,883.49, 105,941.75 and 56,708.41 is: 78,141.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,883.49 : 105,941.75 = 56,708.41 : x
  2. Step 2: Convert to fraction form
    76,883.49/105,941.75 = 56,708.41/x
  3. Step 3: Cross multiply
    76,883.49x = 105,941.75 × 56,708.41
  4. Step 4: Simplify right side
    76,883.49x = 6,007,788,195.12
  5. Step 5: Solve for x
    x = 6,007,788,195.12/76,883.49
  6. Step 6: Final answer
    x = 78,141.46

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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.