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Finding the Fourth Proportional to 89,855.80, 134,783.70 and 63,611.80

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Solution

The fourth proportional to 89,855.80, 134,783.70 and 63,611.80 is: 95,417.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,855.80 : 134,783.70 = 63,611.80 : x
  2. Step 2: Convert to fraction form
    89,855.80/134,783.70 = 63,611.80/x
  3. Step 3: Cross multiply
    89,855.80x = 134,783.70 × 63,611.80
  4. Step 4: Simplify right side
    89,855.80x = 8,573,833,767.66
  5. Step 5: Solve for x
    x = 8,573,833,767.66/89,855.80
  6. Step 6: Final answer
    x = 95,417.70

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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.