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Finding the Fourth Proportional to 65,261.10, 97,891.65 and 20,889.30

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Solution

The fourth proportional to 65,261.10, 97,891.65 and 20,889.30 is: 31,333.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,261.10 : 97,891.65 = 20,889.30 : x
  2. Step 2: Convert to fraction form
    65,261.10/97,891.65 = 20,889.30/x
  3. Step 3: Cross multiply
    65,261.10x = 97,891.65 × 20,889.30
  4. Step 4: Simplify right side
    65,261.10x = 2,044,888,044.35
  5. Step 5: Solve for x
    x = 2,044,888,044.35/65,261.10
  6. Step 6: Final answer
    x = 31,333.95

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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.