Home / 65,236.10-97,861.35-20,855.30

Finding the Fourth Proportional to 65,236.10, 97,861.35 and 20,855.30

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Solution

The fourth proportional to 65,236.10, 97,861.35 and 20,855.30 is: 31,285.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,236.10 : 97,861.35 = 20,855.30 : x
  2. Step 2: Convert to fraction form
    65,236.10/97,861.35 = 20,855.30/x
  3. Step 3: Cross multiply
    65,236.10x = 97,861.35 × 20,855.30
  4. Step 4: Simplify right side
    65,236.10x = 2,040,927,812.66
  5. Step 5: Solve for x
    x = 2,040,927,812.66/65,236.10
  6. Step 6: Final answer
    x = 31,285.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.