Home / 94,978.46-131,077.40-54,143.56

Finding the Fourth Proportional to 94,978.46, 131,077.40 and 54,143.56

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Solution

The fourth proportional to 94,978.46, 131,077.40 and 54,143.56 is: 74,722.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,978.46 : 131,077.40 = 54,143.56 : x
  2. Step 2: Convert to fraction form
    94,978.46/131,077.40 = 54,143.56/x
  3. Step 3: Cross multiply
    94,978.46x = 131,077.40 × 54,143.56
  4. Step 4: Simplify right side
    94,978.46x = 7,096,996,800.83
  5. Step 5: Solve for x
    x = 7,096,996,800.83/94,978.46
  6. Step 6: Final answer
    x = 74,722.17

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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.