Home / 55,865.86-77,111.25-33,220.80

Finding the Fourth Proportional to 55,865.86, 77,111.25 and 33,220.80

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Solution

The fourth proportional to 55,865.86, 77,111.25 and 33,220.80 is: 45,854.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,865.86 : 77,111.25 = 33,220.80 : x
  2. Step 2: Convert to fraction form
    55,865.86/77,111.25 = 33,220.80/x
  3. Step 3: Cross multiply
    55,865.86x = 77,111.25 × 33,220.80
  4. Step 4: Simplify right side
    55,865.86x = 2,561,697,289.42
  5. Step 5: Solve for x
    x = 2,561,697,289.42/55,865.86
  6. Step 6: Final answer
    x = 45,854.43

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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.