Home / 55,376.36-76,416.72-31,500.80

Finding the Fourth Proportional to 55,376.36, 76,416.72 and 31,500.80

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Solution

The fourth proportional to 55,376.36, 76,416.72 and 31,500.80 is: 43,469.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,376.36 : 76,416.72 = 31,500.80 : x
  2. Step 2: Convert to fraction form
    55,376.36/76,416.72 = 31,500.80/x
  3. Step 3: Cross multiply
    55,376.36x = 76,416.72 × 31,500.80
  4. Step 4: Simplify right side
    55,376.36x = 2,407,187,813.38
  5. Step 5: Solve for x
    x = 2,407,187,813.38/55,376.36
  6. Step 6: Final answer
    x = 43,469.59

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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.