Home / 49,723.76-68,628-28,503.20

Finding the Fourth Proportional to 49,723.76, 68,628 and 28,503.20

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Solution

The fourth proportional to 49,723.76, 68,628 and 28,503.20 is: 39,339.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,723.76 : 68,628 = 28,503.20 : x
  2. Step 2: Convert to fraction form
    49,723.76/68,628 = 28,503.20/x
  3. Step 3: Cross multiply
    49,723.76x = 68,628 × 28,503.20
  4. Step 4: Simplify right side
    49,723.76x = 1,956,117,609.60
  5. Step 5: Solve for x
    x = 1,956,117,609.60/49,723.76
  6. Step 6: Final answer
    x = 39,339.70

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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.