Home / 55,275.35-76,280.27-31,403.36

Finding the Fourth Proportional to 55,275.35, 76,280.27 and 31,403.36

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Solution

The fourth proportional to 55,275.35, 76,280.27 and 31,403.36 is: 43,336.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,275.35 : 76,280.27 = 31,403.36 : x
  2. Step 2: Convert to fraction form
    55,275.35/76,280.27 = 31,403.36/x
  3. Step 3: Cross multiply
    55,275.35x = 76,280.27 × 31,403.36
  4. Step 4: Simplify right side
    55,275.35x = 2,395,456,813.39
  5. Step 5: Solve for x
    x = 2,395,456,813.39/55,275.35
  6. Step 6: Final answer
    x = 43,336.80

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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.