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Finding the Fourth Proportional to 66,903.70, 100,355.55 and 44,644.90

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Solution

The fourth proportional to 66,903.70, 100,355.55 and 44,644.90 is: 66,967.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,903.70 : 100,355.55 = 44,644.90 : x
  2. Step 2: Convert to fraction form
    66,903.70/100,355.55 = 44,644.90/x
  3. Step 3: Cross multiply
    66,903.70x = 100,355.55 × 44,644.90
  4. Step 4: Simplify right side
    66,903.70x = 4,480,363,494.20
  5. Step 5: Solve for x
    x = 4,480,363,494.20/66,903.70
  6. Step 6: Final answer
    x = 66,967.35

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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.