Home / 55,199.12-76,162.92-31,323.92

Finding the Fourth Proportional to 55,199.12, 76,162.92 and 31,323.92

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Solution

The fourth proportional to 55,199.12, 76,162.92 and 31,323.92 is: 43,220.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,199.12 : 76,162.92 = 31,323.92 : x
  2. Step 2: Convert to fraction form
    55,199.12/76,162.92 = 31,323.92/x
  3. Step 3: Cross multiply
    55,199.12x = 76,162.92 × 31,323.92
  4. Step 4: Simplify right side
    55,199.12x = 2,385,721,213.05
  5. Step 5: Solve for x
    x = 2,385,721,213.05/55,199.12
  6. Step 6: Final answer
    x = 43,220.28

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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.