Home / 56,917.55-78,546.34-31,423.97

Finding the Fourth Proportional to 56,917.55, 78,546.34 and 31,423.97

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Solution

The fourth proportional to 56,917.55, 78,546.34 and 31,423.97 is: 43,365.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,917.55 : 78,546.34 = 31,423.97 : x
  2. Step 2: Convert to fraction form
    56,917.55/78,546.34 = 31,423.97/x
  3. Step 3: Cross multiply
    56,917.55x = 78,546.34 × 31,423.97
  4. Step 4: Simplify right side
    56,917.55x = 2,468,237,831.77
  5. Step 5: Solve for x
    x = 2,468,237,831.77/56,917.55
  6. Step 6: Final answer
    x = 43,365.15

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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.