Home / 58,979.38-81,296.70-39,853.18

Finding the Fourth Proportional to 58,979.38, 81,296.70 and 39,853.18

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Solution

The fourth proportional to 58,979.38, 81,296.70 and 39,853.18 is: 54,933.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,979.38 : 81,296.70 = 39,853.18 : x
  2. Step 2: Convert to fraction form
    58,979.38/81,296.70 = 39,853.18/x
  3. Step 3: Cross multiply
    58,979.38x = 81,296.70 × 39,853.18
  4. Step 4: Simplify right side
    58,979.38x = 3,239,932,018.51
  5. Step 5: Solve for x
    x = 3,239,932,018.51/58,979.38
  6. Step 6: Final answer
    x = 54,933.30

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1.5x scale

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.