Home / 58,796.13-81,172.33-38,711.40

Finding the Fourth Proportional to 58,796.13, 81,172.33 and 38,711.40

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Solution

The fourth proportional to 58,796.13, 81,172.33 and 38,711.40 is: 53,443.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,796.13 : 81,172.33 = 38,711.40 : x
  2. Step 2: Convert to fraction form
    58,796.13/81,172.33 = 38,711.40/x
  3. Step 3: Cross multiply
    58,796.13x = 81,172.33 × 38,711.40
  4. Step 4: Simplify right side
    58,796.13x = 3,142,294,134.39
  5. Step 5: Solve for x
    x = 3,142,294,134.39/58,796.13
  6. Step 6: Final answer
    x = 53,443.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.