Home / 48,528.80-66,945.20-28,372.48

Finding the Fourth Proportional to 48,528.80, 66,945.20 and 28,372.48

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Solution

The fourth proportional to 48,528.80, 66,945.20 and 28,372.48 is: 39,139.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,528.80 : 66,945.20 = 28,372.48 : x
  2. Step 2: Convert to fraction form
    48,528.80/66,945.20 = 28,372.48/x
  3. Step 3: Cross multiply
    48,528.80x = 66,945.20 × 28,372.48
  4. Step 4: Simplify right side
    48,528.80x = 1,899,401,348.10
  5. Step 5: Solve for x
    x = 1,899,401,348.10/48,528.80
  6. Step 6: Final answer
    x = 39,139.67

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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.