Home / 58,836.90-81,195.42-31,979.40

Finding the Fourth Proportional to 58,836.90, 81,195.42 and 31,979.40

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Solution

The fourth proportional to 58,836.90, 81,195.42 and 31,979.40 is: 44,131.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,836.90 : 81,195.42 = 31,979.40 : x
  2. Step 2: Convert to fraction form
    58,836.90/81,195.42 = 31,979.40/x
  3. Step 3: Cross multiply
    58,836.90x = 81,195.42 × 31,979.40
  4. Step 4: Simplify right side
    58,836.90x = 2,596,580,814.35
  5. Step 5: Solve for x
    x = 2,596,580,814.35/58,836.90
  6. Step 6: Final answer
    x = 44,131.84

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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.