Home / 55,250.10-76,243.68-31,377.78

Finding the Fourth Proportional to 55,250.10, 76,243.68 and 31,377.78

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Solution

The fourth proportional to 55,250.10, 76,243.68 and 31,377.78 is: 43,300.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,250.10 : 76,243.68 = 31,377.78 : x
  2. Step 2: Convert to fraction form
    55,250.10/76,243.68 = 31,377.78/x
  3. Step 3: Cross multiply
    55,250.10x = 76,243.68 × 31,377.78
  4. Step 4: Simplify right side
    55,250.10x = 2,392,357,417.43
  5. Step 5: Solve for x
    x = 2,392,357,417.43/55,250.10
  6. Step 6: Final answer
    x = 43,300.51

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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.