Home / 65,681.19-90,638.46-36,609.36

Finding the Fourth Proportional to 65,681.19, 90,638.46 and 36,609.36

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Solution

The fourth proportional to 65,681.19, 90,638.46 and 36,609.36 is: 50,520.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,681.19 : 90,638.46 = 36,609.36 : x
  2. Step 2: Convert to fraction form
    65,681.19/90,638.46 = 36,609.36/x
  3. Step 3: Cross multiply
    65,681.19x = 90,638.46 × 36,609.36
  4. Step 4: Simplify right side
    65,681.19x = 3,318,216,011.99
  5. Step 5: Solve for x
    x = 3,318,216,011.99/65,681.19
  6. Step 6: Final answer
    x = 50,520.03

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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.