Home / 56,315.44-84,485.20-20,776.88

Finding the Fourth Proportional to 56,315.44, 84,485.20 and 20,776.88

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Solution

The fourth proportional to 56,315.44, 84,485.20 and 20,776.88 is: 31,169.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,315.44 : 84,485.20 = 20,776.88 : x
  2. Step 2: Convert to fraction form
    56,315.44/84,485.20 = 20,776.88/x
  3. Step 3: Cross multiply
    56,315.44x = 84,485.20 × 20,776.88
  4. Step 4: Simplify right side
    56,315.44x = 1,755,338,862.18
  5. Step 5: Solve for x
    x = 1,755,338,862.18/56,315.44
  6. Step 6: Final answer
    x = 31,169.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.