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Finding the Fourth Proportional to 66,491.70, 99,737.55 and 63,867.30

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Solution

The fourth proportional to 66,491.70, 99,737.55 and 63,867.30 is: 95,800.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,491.70 : 99,737.55 = 63,867.30 : x
  2. Step 2: Convert to fraction form
    66,491.70/99,737.55 = 63,867.30/x
  3. Step 3: Cross multiply
    66,491.70x = 99,737.55 × 63,867.30
  4. Step 4: Simplify right side
    66,491.70x = 6,369,968,027.12
  5. Step 5: Solve for x
    x = 6,369,968,027.12/66,491.70
  6. Step 6: Final answer
    x = 95,800.95

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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.