Home / 56,577.43-78,077.07-31,085.86

Finding the Fourth Proportional to 56,577.43, 78,077.07 and 31,085.86

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Solution

The fourth proportional to 56,577.43, 78,077.07 and 31,085.86 is: 42,898.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,577.43 : 78,077.07 = 31,085.86 : x
  2. Step 2: Convert to fraction form
    56,577.43/78,077.07 = 31,085.86/x
  3. Step 3: Cross multiply
    56,577.43x = 78,077.07 × 31,085.86
  4. Step 4: Simplify right side
    56,577.43x = 2,427,092,867.23
  5. Step 5: Solve for x
    x = 2,427,092,867.23/56,577.43
  6. Step 6: Final answer
    x = 42,898.61

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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.