Home / 55,234.51-76,220.89-31,358.05

Finding the Fourth Proportional to 55,234.51, 76,220.89 and 31,358.05

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Solution

The fourth proportional to 55,234.51, 76,220.89 and 31,358.05 is: 43,272.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,234.51 : 76,220.89 = 31,358.05 : x
  2. Step 2: Convert to fraction form
    55,234.51/76,220.89 = 31,358.05/x
  3. Step 3: Cross multiply
    55,234.51x = 76,220.89 × 31,358.05
  4. Step 4: Simplify right side
    55,234.51x = 2,390,138,479.66
  5. Step 5: Solve for x
    x = 2,390,138,479.66/55,234.51
  6. Step 6: Final answer
    x = 43,272.56

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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.