Home / 54,748.34-82,134.82-19,688

Finding the Fourth Proportional to 54,748.34, 82,134.82 and 19,688

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Solution

The fourth proportional to 54,748.34, 82,134.82 and 19,688 is: 29,536.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,748.34 : 82,134.82 = 19,688 : x
  2. Step 2: Convert to fraction form
    54,748.34/82,134.82 = 19,688/x
  3. Step 3: Cross multiply
    54,748.34x = 82,134.82 × 19,688
  4. Step 4: Simplify right side
    54,748.34x = 1,617,070,336.16
  5. Step 5: Solve for x
    x = 1,617,070,336.16/54,748.34
  6. Step 6: Final answer
    x = 29,536.43

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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.