Home / 55,456.11-83,124.63-19,883.21

Finding the Fourth Proportional to 55,456.11, 83,124.63 and 19,883.21

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Solution

The fourth proportional to 55,456.11, 83,124.63 and 19,883.21 is: 29,803.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,456.11 : 83,124.63 = 19,883.21 : x
  2. Step 2: Convert to fraction form
    55,456.11/83,124.63 = 19,883.21/x
  3. Step 3: Cross multiply
    55,456.11x = 83,124.63 × 19,883.21
  4. Step 4: Simplify right side
    55,456.11x = 1,652,784,058.84
  5. Step 5: Solve for x
    x = 1,652,784,058.84/55,456.11
  6. Step 6: Final answer
    x = 29,803.46

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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.