Home / 90,936.86-125,449.41-70,654.95

Finding the Fourth Proportional to 90,936.86, 125,449.41 and 70,654.95

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Solution

The fourth proportional to 90,936.86, 125,449.41 and 70,654.95 is: 97,470.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,936.86 : 125,449.41 = 70,654.95 : x
  2. Step 2: Convert to fraction form
    90,936.86/125,449.41 = 70,654.95/x
  3. Step 3: Cross multiply
    90,936.86x = 125,449.41 × 70,654.95
  4. Step 4: Simplify right side
    90,936.86x = 8,863,621,791.08
  5. Step 5: Solve for x
    x = 8,863,621,791.08/90,936.86
  6. Step 6: Final answer
    x = 97,470.07

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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.