Home / 57,079.86-78,765.93-31,924.50

Finding the Fourth Proportional to 57,079.86, 78,765.93 and 31,924.50

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Solution

The fourth proportional to 57,079.86, 78,765.93 and 31,924.50 is: 44,053.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,079.86 : 78,765.93 = 31,924.50 : x
  2. Step 2: Convert to fraction form
    57,079.86/78,765.93 = 31,924.50/x
  3. Step 3: Cross multiply
    57,079.86x = 78,765.93 × 31,924.50
  4. Step 4: Simplify right side
    57,079.86x = 2,514,562,932.29
  5. Step 5: Solve for x
    x = 2,514,562,932.29/57,079.86
  6. Step 6: Final answer
    x = 44,053.42

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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.