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Finding the Fourth Proportional to 65,262.10, 97,893.15 and 20,890.30

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Solution

The fourth proportional to 65,262.10, 97,893.15 and 20,890.30 is: 31,335.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,262.10 : 97,893.15 = 20,890.30 : x
  2. Step 2: Convert to fraction form
    65,262.10/97,893.15 = 20,890.30/x
  3. Step 3: Cross multiply
    65,262.10x = 97,893.15 × 20,890.30
  4. Step 4: Simplify right side
    65,262.10x = 2,045,017,271.45
  5. Step 5: Solve for x
    x = 2,045,017,271.45/65,262.10
  6. Step 6: Final answer
    x = 31,335.45

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Similar ratio
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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.