Home / 64,686.14-89,234.21-37,811.09

Finding the Fourth Proportional to 64,686.14, 89,234.21 and 37,811.09

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Solution

The fourth proportional to 64,686.14, 89,234.21 and 37,811.09 is: 52,160.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,686.14 : 89,234.21 = 37,811.09 : x
  2. Step 2: Convert to fraction form
    64,686.14/89,234.21 = 37,811.09/x
  3. Step 3: Cross multiply
    64,686.14x = 89,234.21 × 37,811.09
  4. Step 4: Simplify right side
    64,686.14x = 3,374,042,110.16
  5. Step 5: Solve for x
    x = 3,374,042,110.16/64,686.14
  6. Step 6: Final answer
    x = 52,160.21

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1.5x scale

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.