Home / 45,117.72-67,692.27-20,155.35

Finding the Fourth Proportional to 45,117.72, 67,692.27 and 20,155.35

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Solution

The fourth proportional to 45,117.72, 67,692.27 and 20,155.35 is: 30,240.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,117.72 : 67,692.27 = 20,155.35 : x
  2. Step 2: Convert to fraction form
    45,117.72/67,692.27 = 20,155.35/x
  3. Step 3: Cross multiply
    45,117.72x = 67,692.27 × 20,155.35
  4. Step 4: Simplify right side
    45,117.72x = 1,364,361,394.14
  5. Step 5: Solve for x
    x = 1,364,361,394.14/45,117.72
  6. Step 6: Final answer
    x = 30,240.03

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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.