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Finding the Fourth Proportional to 63,375.40, 95,063.10 and 42,485.80

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Solution

The fourth proportional to 63,375.40, 95,063.10 and 42,485.80 is: 63,728.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,375.40 : 95,063.10 = 42,485.80 : x
  2. Step 2: Convert to fraction form
    63,375.40/95,063.10 = 42,485.80/x
  3. Step 3: Cross multiply
    63,375.40x = 95,063.10 × 42,485.80
  4. Step 4: Simplify right side
    63,375.40x = 4,038,831,853.98
  5. Step 5: Solve for x
    x = 4,038,831,853.98/63,375.40
  6. Step 6: Final answer
    x = 63,728.70

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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.