Home / 215,345.05-322,992.95-57,585.80

Finding the Fourth Proportional to 215,345.05, 322,992.95 and 57,585.80

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Solution

The fourth proportional to 215,345.05, 322,992.95 and 57,585.80 is: 86,372.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,345.05 : 322,992.95 = 57,585.80 : x
  2. Step 2: Convert to fraction form
    215,345.05/322,992.95 = 57,585.80/x
  3. Step 3: Cross multiply
    215,345.05x = 322,992.95 × 57,585.80
  4. Step 4: Simplify right side
    215,345.05x = 18,599,807,939.66
  5. Step 5: Solve for x
    x = 18,599,807,939.66/215,345.05
  6. Step 6: Final answer
    x = 86,372.12

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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.