Home / 89,628.28-134,411.06-26,431.64

Finding the Fourth Proportional to 89,628.28, 134,411.06 and 26,431.64

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Solution

The fourth proportional to 89,628.28, 134,411.06 and 26,431.64 is: 39,638.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,628.28 : 134,411.06 = 26,431.64 : x
  2. Step 2: Convert to fraction form
    89,628.28/134,411.06 = 26,431.64/x
  3. Step 3: Cross multiply
    89,628.28x = 134,411.06 × 26,431.64
  4. Step 4: Simplify right side
    89,628.28x = 3,552,704,749.94
  5. Step 5: Solve for x
    x = 3,552,704,749.94/89,628.28
  6. Step 6: Final answer
    x = 39,638.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.