Home / 49,703.20-74,497.20-20,106.40

Finding the Fourth Proportional to 49,703.20, 74,497.20 and 20,106.40

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Solution

The fourth proportional to 49,703.20, 74,497.20 and 20,106.40 is: 30,136.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,703.20 : 74,497.20 = 20,106.40 : x
  2. Step 2: Convert to fraction form
    49,703.20/74,497.20 = 20,106.40/x
  3. Step 3: Cross multiply
    49,703.20x = 74,497.20 × 20,106.40
  4. Step 4: Simplify right side
    49,703.20x = 1,497,870,502.08
  5. Step 5: Solve for x
    x = 1,497,870,502.08/49,703.20
  6. Step 6: Final answer
    x = 30,136.30

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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.