Home / 88,692.80-122,529.35-58,138.43

Finding the Fourth Proportional to 88,692.80, 122,529.35 and 58,138.43

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Solution

The fourth proportional to 88,692.80, 122,529.35 and 58,138.43 is: 80,318.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,692.80 : 122,529.35 = 58,138.43 : x
  2. Step 2: Convert to fraction form
    88,692.80/122,529.35 = 58,138.43/x
  3. Step 3: Cross multiply
    88,692.80x = 122,529.35 × 58,138.43
  4. Step 4: Simplify right side
    88,692.80x = 7,123,663,570.62
  5. Step 5: Solve for x
    x = 7,123,663,570.62/88,692.80
  6. Step 6: Final answer
    x = 80,318.40

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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.