Home / 49,048.05-67,685.66-28,905.78

Finding the Fourth Proportional to 49,048.05, 67,685.66 and 28,905.78

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Solution

The fourth proportional to 49,048.05, 67,685.66 and 28,905.78 is: 39,889.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,048.05 : 67,685.66 = 28,905.78 : x
  2. Step 2: Convert to fraction form
    49,048.05/67,685.66 = 28,905.78/x
  3. Step 3: Cross multiply
    49,048.05x = 67,685.66 × 28,905.78
  4. Step 4: Simplify right side
    49,048.05x = 1,956,506,797.11
  5. Step 5: Solve for x
    x = 1,956,506,797.11/49,048.05
  6. Step 6: Final answer
    x = 39,889.59

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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.