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Finding the Fourth Proportional to 67,164.32, 92,692.32 and 38,879.84

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Solution

The fourth proportional to 67,164.32, 92,692.32 and 38,879.84 is: 53,657.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,164.32 : 92,692.32 = 38,879.84 : x
  2. Step 2: Convert to fraction form
    67,164.32/92,692.32 = 38,879.84/x
  3. Step 3: Cross multiply
    67,164.32x = 92,692.32 × 38,879.84
  4. Step 4: Simplify right side
    67,164.32x = 3,603,862,570.83
  5. Step 5: Solve for x
    x = 3,603,862,570.83/67,164.32
  6. Step 6: Final answer
    x = 53,657.40

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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.