Home / 55,478.48-76,561.80-33,135.44

Finding the Fourth Proportional to 55,478.48, 76,561.80 and 33,135.44

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Solution

The fourth proportional to 55,478.48, 76,561.80 and 33,135.44 is: 45,727.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,478.48 : 76,561.80 = 33,135.44 : x
  2. Step 2: Convert to fraction form
    55,478.48/76,561.80 = 33,135.44/x
  3. Step 3: Cross multiply
    55,478.48x = 76,561.80 × 33,135.44
  4. Step 4: Simplify right side
    55,478.48x = 2,536,908,930.19
  5. Step 5: Solve for x
    x = 2,536,908,930.19/55,478.48
  6. Step 6: Final answer
    x = 45,727.80

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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.