Home / 55,642.55-76,785.57-39,753.99

Finding the Fourth Proportional to 55,642.55, 76,785.57 and 39,753.99

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Solution

The fourth proportional to 55,642.55, 76,785.57 and 39,753.99 is: 54,859.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,642.55 : 76,785.57 = 39,753.99 : x
  2. Step 2: Convert to fraction form
    55,642.55/76,785.57 = 39,753.99/x
  3. Step 3: Cross multiply
    55,642.55x = 76,785.57 × 39,753.99
  4. Step 4: Simplify right side
    55,642.55x = 3,052,532,781.92
  5. Step 5: Solve for x
    x = 3,052,532,781.92/55,642.55
  6. Step 6: Final answer
    x = 54,859.69

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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.