Home / 55,288.36-76,298.12-31,422.96

Finding the Fourth Proportional to 55,288.36, 76,298.12 and 31,422.96

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Solution

The fourth proportional to 55,288.36, 76,298.12 and 31,422.96 is: 43,363.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,288.36 : 76,298.12 = 31,422.96 : x
  2. Step 2: Convert to fraction form
    55,288.36/76,298.12 = 31,422.96/x
  3. Step 3: Cross multiply
    55,288.36x = 76,298.12 × 31,422.96
  4. Step 4: Simplify right side
    55,288.36x = 2,397,512,772.84
  5. Step 5: Solve for x
    x = 2,397,512,772.84/55,288.36
  6. Step 6: Final answer
    x = 43,363.79

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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.