Home / 55,775.23-76,947.92-31,889.09

Finding the Fourth Proportional to 55,775.23, 76,947.92 and 31,889.09

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Solution

The fourth proportional to 55,775.23, 76,947.92 and 31,889.09 is: 43,994.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,775.23 : 76,947.92 = 31,889.09 : x
  2. Step 2: Convert to fraction form
    55,775.23/76,947.92 = 31,889.09/x
  3. Step 3: Cross multiply
    55,775.23x = 76,947.92 × 31,889.09
  4. Step 4: Simplify right side
    55,775.23x = 2,453,799,478.08
  5. Step 5: Solve for x
    x = 2,453,799,478.08/55,775.23
  6. Step 6: Final answer
    x = 43,994.43

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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.