Home / 55,275.77-76,280.82-31,403.76

Finding the Fourth Proportional to 55,275.77, 76,280.82 and 31,403.76

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Solution

The fourth proportional to 55,275.77, 76,280.82 and 31,403.76 is: 43,337.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,275.77 : 76,280.82 = 31,403.76 : x
  2. Step 2: Convert to fraction form
    55,275.77/76,280.82 = 31,403.76/x
  3. Step 3: Cross multiply
    55,275.77x = 76,280.82 × 31,403.76
  4. Step 4: Simplify right side
    55,275.77x = 2,395,504,103.97
  5. Step 5: Solve for x
    x = 2,395,504,103.97/55,275.77
  6. Step 6: Final answer
    x = 43,337.32

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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.