Home / 49,988.10-74,953.80-20,371.26

Finding the Fourth Proportional to 49,988.10, 74,953.80 and 20,371.26

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Solution

The fourth proportional to 49,988.10, 74,953.80 and 20,371.26 is: 30,545.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,988.10 : 74,953.80 = 20,371.26 : x
  2. Step 2: Convert to fraction form
    49,988.10/74,953.80 = 20,371.26/x
  3. Step 3: Cross multiply
    49,988.10x = 74,953.80 × 20,371.26
  4. Step 4: Simplify right side
    49,988.10x = 1,526,903,347.79
  5. Step 5: Solve for x
    x = 1,526,903,347.79/49,988.10
  6. Step 6: Final answer
    x = 30,545.34

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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.