Home / 56,722.50-78,277.05-31,571.46

Finding the Fourth Proportional to 56,722.50, 78,277.05 and 31,571.46

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Solution

The fourth proportional to 56,722.50, 78,277.05 and 31,571.46 is: 43,568.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,722.50 : 78,277.05 = 31,571.46 : x
  2. Step 2: Convert to fraction form
    56,722.50/78,277.05 = 31,571.46/x
  3. Step 3: Cross multiply
    56,722.50x = 78,277.05 × 31,571.46
  4. Step 4: Simplify right side
    56,722.50x = 2,471,320,752.99
  5. Step 5: Solve for x
    x = 2,471,320,752.99/56,722.50
  6. Step 6: Final answer
    x = 43,568.61

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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.