Home / 91,913.97-137,866.50-28,733.58

Finding the Fourth Proportional to 91,913.97, 137,866.50 and 28,733.58

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Solution

The fourth proportional to 91,913.97, 137,866.50 and 28,733.58 is: 43,098.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,913.97 : 137,866.50 = 28,733.58 : x
  2. Step 2: Convert to fraction form
    91,913.97/137,866.50 = 28,733.58/x
  3. Step 3: Cross multiply
    91,913.97x = 137,866.50 × 28,733.58
  4. Step 4: Simplify right side
    91,913.97x = 3,961,398,107.07
  5. Step 5: Solve for x
    x = 3,961,398,107.07/91,913.97
  6. Step 6: Final answer
    x = 43,098.98

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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.