Home / 45,130.72-67,734.96-21,776.80

Finding the Fourth Proportional to 45,130.72, 67,734.96 and 21,776.80

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Solution

The fourth proportional to 45,130.72, 67,734.96 and 21,776.80 is: 32,683.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,130.72 : 67,734.96 = 21,776.80 : x
  2. Step 2: Convert to fraction form
    45,130.72/67,734.96 = 21,776.80/x
  3. Step 3: Cross multiply
    45,130.72x = 67,734.96 × 21,776.80
  4. Step 4: Simplify right side
    45,130.72x = 1,475,050,676.93
  5. Step 5: Solve for x
    x = 1,475,050,676.93/45,130.72
  6. Step 6: Final answer
    x = 32,683.96

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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.