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Finding the Fourth Proportional to 67,664.70, 101,497.05 and 66,498.30

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Solution

The fourth proportional to 67,664.70, 101,497.05 and 66,498.30 is: 99,747.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,664.70 : 101,497.05 = 66,498.30 : x
  2. Step 2: Convert to fraction form
    67,664.70/101,497.05 = 66,498.30/x
  3. Step 3: Cross multiply
    67,664.70x = 101,497.05 × 66,498.30
  4. Step 4: Simplify right side
    67,664.70x = 6,749,381,280.02
  5. Step 5: Solve for x
    x = 6,749,381,280.02/67,664.70
  6. Step 6: Final answer
    x = 99,747.45

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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.