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Finding the Fourth Proportional to 63,051.40, 87,008.34 and 40,358.44

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Solution

The fourth proportional to 63,051.40, 87,008.34 and 40,358.44 is: 55,692.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,051.40 : 87,008.34 = 40,358.44 : x
  2. Step 2: Convert to fraction form
    63,051.40/87,008.34 = 40,358.44/x
  3. Step 3: Cross multiply
    63,051.40x = 87,008.34 × 40,358.44
  4. Step 4: Simplify right side
    63,051.40x = 3,511,520,869.39
  5. Step 5: Solve for x
    x = 3,511,520,869.39/63,051.40
  6. Step 6: Final answer
    x = 55,692.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.