Home / 56,910.45-78,535.96-31,416.81

Finding the Fourth Proportional to 56,910.45, 78,535.96 and 31,416.81

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Solution

The fourth proportional to 56,910.45, 78,535.96 and 31,416.81 is: 43,354.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,910.45 : 78,535.96 = 31,416.81 : x
  2. Step 2: Convert to fraction form
    56,910.45/78,535.96 = 31,416.81/x
  3. Step 3: Cross multiply
    56,910.45x = 78,535.96 × 31,416.81
  4. Step 4: Simplify right side
    56,910.45x = 2,467,349,333.49
  5. Step 5: Solve for x
    x = 2,467,349,333.49/56,910.45
  6. Step 6: Final answer
    x = 43,354.94

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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.