Home / 50,657.13-75,985.69-13,721.13

Finding the Fourth Proportional to 50,657.13, 75,985.69 and 13,721.13

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Solution

The fourth proportional to 50,657.13, 75,985.69 and 13,721.13 is: 20,581.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,657.13 : 75,985.69 = 13,721.13 : x
  2. Step 2: Convert to fraction form
    50,657.13/75,985.69 = 13,721.13/x
  3. Step 3: Cross multiply
    50,657.13x = 75,985.69 × 13,721.13
  4. Step 4: Simplify right side
    50,657.13x = 1,042,609,530.63
  5. Step 5: Solve for x
    x = 1,042,609,530.63/50,657.13
  6. Step 6: Final answer
    x = 20,581.69

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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.