Home / 55,277.88-76,285.26-31,404.12

Finding the Fourth Proportional to 55,277.88, 76,285.26 and 31,404.12

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Solution

The fourth proportional to 55,277.88, 76,285.26 and 31,404.12 is: 43,338.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,277.88 : 76,285.26 = 31,404.12 : x
  2. Step 2: Convert to fraction form
    55,277.88/76,285.26 = 31,404.12/x
  3. Step 3: Cross multiply
    55,277.88x = 76,285.26 × 31,404.12
  4. Step 4: Simplify right side
    55,277.88x = 2,395,671,459.27
  5. Step 5: Solve for x
    x = 2,395,671,459.27/55,277.88
  6. Step 6: Final answer
    x = 43,338.70

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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.