Home / 55,225.48-76,213.86-31,351.72

Finding the Fourth Proportional to 55,225.48, 76,213.86 and 31,351.72

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Solution

The fourth proportional to 55,225.48, 76,213.86 and 31,351.72 is: 43,266.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,225.48 : 76,213.86 = 31,351.72 : x
  2. Step 2: Convert to fraction form
    55,225.48/76,213.86 = 31,351.72/x
  3. Step 3: Cross multiply
    55,225.48x = 76,213.86 × 31,351.72
  4. Step 4: Simplify right side
    55,225.48x = 2,389,435,598.84
  5. Step 5: Solve for x
    x = 2,389,435,598.84/55,225.48
  6. Step 6: Final answer
    x = 43,266.91

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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.