Home / 89,428.46-134,101.71-53,421.39

Finding the Fourth Proportional to 89,428.46, 134,101.71 and 53,421.39

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Solution

The fourth proportional to 89,428.46, 134,101.71 and 53,421.39 is: 80,107.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,428.46 : 134,101.71 = 53,421.39 : x
  2. Step 2: Convert to fraction form
    89,428.46/134,101.71 = 53,421.39/x
  3. Step 3: Cross multiply
    89,428.46x = 134,101.71 × 53,421.39
  4. Step 4: Simplify right side
    89,428.46x = 7,163,899,749.58
  5. Step 5: Solve for x
    x = 7,163,899,749.58/89,428.46
  6. Step 6: Final answer
    x = 80,107.61

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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.