Home / 55,119.06-76,081.56-31,261.50

Finding the Fourth Proportional to 55,119.06, 76,081.56 and 31,261.50

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Solution

The fourth proportional to 55,119.06, 76,081.56 and 31,261.50 is: 43,150.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,119.06 : 76,081.56 = 31,261.50 : x
  2. Step 2: Convert to fraction form
    55,119.06/76,081.56 = 31,261.50/x
  3. Step 3: Cross multiply
    55,119.06x = 76,081.56 × 31,261.50
  4. Step 4: Simplify right side
    55,119.06x = 2,378,423,687.94
  5. Step 5: Solve for x
    x = 2,378,423,687.94/55,119.06
  6. Step 6: Final answer
    x = 43,150.66

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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.