Home / 91,903.84-126,812.04-54,172.96

Finding the Fourth Proportional to 91,903.84, 126,812.04 and 54,172.96

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Solution

The fourth proportional to 91,903.84, 126,812.04 and 54,172.96 is: 74,749.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,903.84 : 126,812.04 = 54,172.96 : x
  2. Step 2: Convert to fraction form
    91,903.84/126,812.04 = 54,172.96/x
  3. Step 3: Cross multiply
    91,903.84x = 126,812.04 × 54,172.96
  4. Step 4: Simplify right side
    91,903.84x = 6,869,783,570.44
  5. Step 5: Solve for x
    x = 6,869,783,570.44/91,903.84
  6. Step 6: Final answer
    x = 74,749.69

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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.