Home / 97,628.72-134,730.81-54,021.76

Finding the Fourth Proportional to 97,628.72, 134,730.81 and 54,021.76

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Solution

The fourth proportional to 97,628.72, 134,730.81 and 54,021.76 is: 74,551.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,628.72 : 134,730.81 = 54,021.76 : x
  2. Step 2: Convert to fraction form
    97,628.72/134,730.81 = 54,021.76/x
  3. Step 3: Cross multiply
    97,628.72x = 134,730.81 × 54,021.76
  4. Step 4: Simplify right side
    97,628.72x = 7,278,395,145.60
  5. Step 5: Solve for x
    x = 7,278,395,145.60/97,628.72
  6. Step 6: Final answer
    x = 74,551.79

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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.