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Finding the Fourth Proportional to 65,506.80, 90,388.33 and 36,822.67

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Solution

The fourth proportional to 65,506.80, 90,388.33 and 36,822.67 is: 50,809.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,506.80 : 90,388.33 = 36,822.67 : x
  2. Step 2: Convert to fraction form
    65,506.80/90,388.33 = 36,822.67/x
  3. Step 3: Cross multiply
    65,506.80x = 90,388.33 × 36,822.67
  4. Step 4: Simplify right side
    65,506.80x = 3,328,339,463.33
  5. Step 5: Solve for x
    x = 3,328,339,463.33/65,506.80
  6. Step 6: Final answer
    x = 50,809.07

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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.