Home / 65,688.21-89,993.18-63,228.19

Finding the Fourth Proportional to 65,688.21, 89,993.18 and 63,228.19

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Solution

The fourth proportional to 65,688.21, 89,993.18 and 63,228.19 is: 86,622.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,688.21 : 89,993.18 = 63,228.19 : x
  2. Step 2: Convert to fraction form
    65,688.21/89,993.18 = 63,228.19/x
  3. Step 3: Cross multiply
    65,688.21x = 89,993.18 × 63,228.19
  4. Step 4: Simplify right side
    65,688.21x = 5,690,105,567.60
  5. Step 5: Solve for x
    x = 5,690,105,567.60/65,688.21
  6. Step 6: Final answer
    x = 86,622.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.