Home / 64,688.36-89,269.94-36,394.05

Finding the Fourth Proportional to 64,688.36, 89,269.94 and 36,394.05

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Solution

The fourth proportional to 64,688.36, 89,269.94 and 36,394.05 is: 50,223.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,688.36 : 89,269.94 = 36,394.05 : x
  2. Step 2: Convert to fraction form
    64,688.36/89,269.94 = 36,394.05/x
  3. Step 3: Cross multiply
    64,688.36x = 89,269.94 × 36,394.05
  4. Step 4: Simplify right side
    64,688.36x = 3,248,894,031.54
  5. Step 5: Solve for x
    x = 3,248,894,031.54/64,688.36
  6. Step 6: Final answer
    x = 50,223.78

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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.