Home / 56,575.43-78,074.31-31,083.86

Finding the Fourth Proportional to 56,575.43, 78,074.31 and 31,083.86

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Solution

The fourth proportional to 56,575.43, 78,074.31 and 31,083.86 is: 42,895.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,575.43 : 78,074.31 = 31,083.86 : x
  2. Step 2: Convert to fraction form
    56,575.43/78,074.31 = 31,083.86/x
  3. Step 3: Cross multiply
    56,575.43x = 78,074.31 × 31,083.86
  4. Step 4: Simplify right side
    56,575.43x = 2,426,850,531.27
  5. Step 5: Solve for x
    x = 2,426,850,531.27/56,575.43
  6. Step 6: Final answer
    x = 42,895.84

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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.