Home / 49,681.39-74,522.13-20,099.47

Finding the Fourth Proportional to 49,681.39, 74,522.13 and 20,099.47

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Solution

The fourth proportional to 49,681.39, 74,522.13 and 20,099.47 is: 30,149.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,681.39 : 74,522.13 = 20,099.47 : x
  2. Step 2: Convert to fraction form
    49,681.39/74,522.13 = 20,099.47/x
  3. Step 3: Cross multiply
    49,681.39x = 74,522.13 × 20,099.47
  4. Step 4: Simplify right side
    49,681.39x = 1,497,855,215.77
  5. Step 5: Solve for x
    x = 1,497,855,215.77/49,681.39
  6. Step 6: Final answer
    x = 30,149.22

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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.