Home / 49,970.88-74,967.12-18,806.04

Finding the Fourth Proportional to 49,970.88, 74,967.12 and 18,806.04

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Solution

The fourth proportional to 49,970.88, 74,967.12 and 18,806.04 is: 28,213.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,970.88 : 74,967.12 = 18,806.04 : x
  2. Step 2: Convert to fraction form
    49,970.88/74,967.12 = 18,806.04/x
  3. Step 3: Cross multiply
    49,970.88x = 74,967.12 × 18,806.04
  4. Step 4: Simplify right side
    49,970.88x = 1,409,834,657.40
  5. Step 5: Solve for x
    x = 1,409,834,657.40/49,970.88
  6. Step 6: Final answer
    x = 28,213.12

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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.