Home / 52,217.12-72,057.68-28,343.28

Finding the Fourth Proportional to 52,217.12, 72,057.68 and 28,343.28

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Solution

The fourth proportional to 52,217.12, 72,057.68 and 28,343.28 is: 39,112.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,217.12 : 72,057.68 = 28,343.28 : x
  2. Step 2: Convert to fraction form
    52,217.12/72,057.68 = 28,343.28/x
  3. Step 3: Cross multiply
    52,217.12x = 72,057.68 × 28,343.28
  4. Step 4: Simplify right side
    52,217.12x = 2,042,351,000.39
  5. Step 5: Solve for x
    x = 2,042,351,000.39/52,217.12
  6. Step 6: Final answer
    x = 39,112.67

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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.