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Finding the Fourth Proportional to 65,360.30, 90,189.81 and 36,676.21

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Solution

The fourth proportional to 65,360.30, 90,189.81 and 36,676.21 is: 50,609.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,360.30 : 90,189.81 = 36,676.21 : x
  2. Step 2: Convert to fraction form
    65,360.30/90,189.81 = 36,676.21/x
  3. Step 3: Cross multiply
    65,360.30x = 90,189.81 × 36,676.21
  4. Step 4: Simplify right side
    65,360.30x = 3,307,820,411.42
  5. Step 5: Solve for x
    x = 3,307,820,411.42/65,360.30
  6. Step 6: Final answer
    x = 50,609.02

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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.