Home / 97,927.72-135,138.90-54,318.94

Finding the Fourth Proportional to 97,927.72, 135,138.90 and 54,318.94

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Solution

The fourth proportional to 97,927.72, 135,138.90 and 54,318.94 is: 74,959.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,927.72 : 135,138.90 = 54,318.94 : x
  2. Step 2: Convert to fraction form
    97,927.72/135,138.90 = 54,318.94/x
  3. Step 3: Cross multiply
    97,927.72x = 135,138.90 × 54,318.94
  4. Step 4: Simplify right side
    97,927.72x = 7,340,601,800.77
  5. Step 5: Solve for x
    x = 7,340,601,800.77/97,927.72
  6. Step 6: Final answer
    x = 74,959.39

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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.