Home / 215,779.86-323,630.82-57,971.39

Finding the Fourth Proportional to 215,779.86, 323,630.82 and 57,971.39

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Solution

The fourth proportional to 215,779.86, 323,630.82 and 57,971.39 is: 86,946.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,779.86 : 323,630.82 = 57,971.39 : x
  2. Step 2: Convert to fraction form
    215,779.86/323,630.82 = 57,971.39/x
  3. Step 3: Cross multiply
    215,779.86x = 323,630.82 × 57,971.39
  4. Step 4: Simplify right side
    215,779.86x = 18,761,326,864.09
  5. Step 5: Solve for x
    x = 18,761,326,864.09/215,779.86
  6. Step 6: Final answer
    x = 86,946.61

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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.