Home / 55,726.68-76,899.06-30,577.80

Finding the Fourth Proportional to 55,726.68, 76,899.06 and 30,577.80

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Solution

The fourth proportional to 55,726.68, 76,899.06 and 30,577.80 is: 42,195.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,726.68 : 76,899.06 = 30,577.80 : x
  2. Step 2: Convert to fraction form
    55,726.68/76,899.06 = 30,577.80/x
  3. Step 3: Cross multiply
    55,726.68x = 76,899.06 × 30,577.80
  4. Step 4: Simplify right side
    55,726.68x = 2,351,404,076.87
  5. Step 5: Solve for x
    x = 2,351,404,076.87/55,726.68
  6. Step 6: Final answer
    x = 42,195.30

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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.