Home / 90,055.81-124,276.44-49,771.90

Finding the Fourth Proportional to 90,055.81, 124,276.44 and 49,771.90

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Solution

The fourth proportional to 90,055.81, 124,276.44 and 49,771.90 is: 68,684.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,055.81 : 124,276.44 = 49,771.90 : x
  2. Step 2: Convert to fraction form
    90,055.81/124,276.44 = 49,771.90/x
  3. Step 3: Cross multiply
    90,055.81x = 124,276.44 × 49,771.90
  4. Step 4: Simplify right side
    90,055.81x = 6,185,474,544.04
  5. Step 5: Solve for x
    x = 6,185,474,544.04/90,055.81
  6. Step 6: Final answer
    x = 68,684.90

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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.