Home / 57,663.95-86,495.40-18,221.06

Finding the Fourth Proportional to 57,663.95, 86,495.40 and 18,221.06

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Solution

The fourth proportional to 57,663.95, 86,495.40 and 18,221.06 is: 27,331.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,663.95 : 86,495.40 = 18,221.06 : x
  2. Step 2: Convert to fraction form
    57,663.95/86,495.40 = 18,221.06/x
  3. Step 3: Cross multiply
    57,663.95x = 86,495.40 × 18,221.06
  4. Step 4: Simplify right side
    57,663.95x = 1,576,038,089.36
  5. Step 5: Solve for x
    x = 1,576,038,089.36/57,663.95
  6. Step 6: Final answer
    x = 27,331.43

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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.