Home / 56,910.97-78,535.08-31,416.79

Finding the Fourth Proportional to 56,910.97, 78,535.08 and 31,416.79

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Solution

The fourth proportional to 56,910.97, 78,535.08 and 31,416.79 is: 43,354.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,910.97 : 78,535.08 = 31,416.79 : x
  2. Step 2: Convert to fraction form
    56,910.97/78,535.08 = 31,416.79/x
  3. Step 3: Cross multiply
    56,910.97x = 78,535.08 × 31,416.79
  4. Step 4: Simplify right side
    56,910.97x = 2,467,320,115.99
  5. Step 5: Solve for x
    x = 2,467,320,115.99/56,910.97
  6. Step 6: Final answer
    x = 43,354.03

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1.5x scale

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.