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Finding the Fourth Proportional to 65,706.72, 98,560.12 and 21,333.52

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Solution

The fourth proportional to 65,706.72, 98,560.12 and 21,333.52 is: 32,000.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,706.72 : 98,560.12 = 21,333.52 : x
  2. Step 2: Convert to fraction form
    65,706.72/98,560.12 = 21,333.52/x
  3. Step 3: Cross multiply
    65,706.72x = 98,560.12 × 21,333.52
  4. Step 4: Simplify right side
    65,706.72x = 2,102,634,291.22
  5. Step 5: Solve for x
    x = 2,102,634,291.22/65,706.72
  6. Step 6: Final answer
    x = 32,000.29

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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.