Home / 55,274.40-76,279.68-31,400.64

Finding the Fourth Proportional to 55,274.40, 76,279.68 and 31,400.64

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Solution

The fourth proportional to 55,274.40, 76,279.68 and 31,400.64 is: 43,333.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,274.40 : 76,279.68 = 31,400.64 : x
  2. Step 2: Convert to fraction form
    55,274.40/76,279.68 = 31,400.64/x
  3. Step 3: Cross multiply
    55,274.40x = 76,279.68 × 31,400.64
  4. Step 4: Simplify right side
    55,274.40x = 2,395,230,771.00
  5. Step 5: Solve for x
    x = 2,395,230,771.00/55,274.40
  6. Step 6: Final answer
    x = 43,333.46

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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.