Home / 55,274.57-76,279.16-31,402.56

Finding the Fourth Proportional to 55,274.57, 76,279.16 and 31,402.56

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Solution

The fourth proportional to 55,274.57, 76,279.16 and 31,402.56 is: 43,335.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,274.57 : 76,279.16 = 31,402.56 : x
  2. Step 2: Convert to fraction form
    55,274.57/76,279.16 = 31,402.56/x
  3. Step 3: Cross multiply
    55,274.57x = 76,279.16 × 31,402.56
  4. Step 4: Simplify right side
    55,274.57x = 2,395,360,517.25
  5. Step 5: Solve for x
    x = 2,395,360,517.25/55,274.57
  6. Step 6: Final answer
    x = 43,335.67

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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.