Home / 48,412.40-72,618.60-28,680.80

Finding the Fourth Proportional to 48,412.40, 72,618.60 and 28,680.80

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Solution

The fourth proportional to 48,412.40, 72,618.60 and 28,680.80 is: 43,021.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,412.40 : 72,618.60 = 28,680.80 : x
  2. Step 2: Convert to fraction form
    48,412.40/72,618.60 = 28,680.80/x
  3. Step 3: Cross multiply
    48,412.40x = 72,618.60 × 28,680.80
  4. Step 4: Simplify right side
    48,412.40x = 2,082,759,542.88
  5. Step 5: Solve for x
    x = 2,082,759,542.88/48,412.40
  6. Step 6: Final answer
    x = 43,021.20

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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.