Home / 58,711.13-81,021.59-31,853.83

Finding the Fourth Proportional to 58,711.13, 81,021.59 and 31,853.83

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Solution

The fourth proportional to 58,711.13, 81,021.59 and 31,853.83 is: 43,958.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,711.13 : 81,021.59 = 31,853.83 : x
  2. Step 2: Convert to fraction form
    58,711.13/81,021.59 = 31,853.83/x
  3. Step 3: Cross multiply
    58,711.13x = 81,021.59 × 31,853.83
  4. Step 4: Simplify right side
    58,711.13x = 2,580,847,954.19
  5. Step 5: Solve for x
    x = 2,580,847,954.19/58,711.13
  6. Step 6: Final answer
    x = 43,958.41

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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.