Home / 90,942.79-125,504.93-50,656.57

Finding the Fourth Proportional to 90,942.79, 125,504.93 and 50,656.57

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Solution

The fourth proportional to 90,942.79, 125,504.93 and 50,656.57 is: 69,908.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,942.79 : 125,504.93 = 50,656.57 : x
  2. Step 2: Convert to fraction form
    90,942.79/125,504.93 = 50,656.57/x
  3. Step 3: Cross multiply
    90,942.79x = 125,504.93 × 50,656.57
  4. Step 4: Simplify right side
    90,942.79x = 6,357,649,271.89
  5. Step 5: Solve for x
    x = 6,357,649,271.89/90,942.79
  6. Step 6: Final answer
    x = 69,908.23

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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.