Home / 55,293.56-76,308.78-31,420.28

Finding the Fourth Proportional to 55,293.56, 76,308.78 and 31,420.28

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Solution

The fourth proportional to 55,293.56, 76,308.78 and 31,420.28 is: 43,362.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,293.56 : 76,308.78 = 31,420.28 : x
  2. Step 2: Convert to fraction form
    55,293.56/76,308.78 = 31,420.28/x
  3. Step 3: Cross multiply
    55,293.56x = 76,308.78 × 31,420.28
  4. Step 4: Simplify right side
    55,293.56x = 2,397,643,234.06
  5. Step 5: Solve for x
    x = 2,397,643,234.06/55,293.56
  6. Step 6: Final answer
    x = 43,362.07

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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.