Home / 55,213.50-76,192.34-31,339.74

Finding the Fourth Proportional to 55,213.50, 76,192.34 and 31,339.74

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Solution

The fourth proportional to 55,213.50, 76,192.34 and 31,339.74 is: 43,247.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,213.50 : 76,192.34 = 31,339.74 : x
  2. Step 2: Convert to fraction form
    55,213.50/76,192.34 = 31,339.74/x
  3. Step 3: Cross multiply
    55,213.50x = 76,192.34 × 31,339.74
  4. Step 4: Simplify right side
    55,213.50x = 2,387,848,125.59
  5. Step 5: Solve for x
    x = 2,387,848,125.59/55,213.50
  6. Step 6: Final answer
    x = 43,247.54

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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.