Home / 55,716.12-76,845.33-38,720.16

Finding the Fourth Proportional to 55,716.12, 76,845.33 and 38,720.16

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Solution

The fourth proportional to 55,716.12, 76,845.33 and 38,720.16 is: 53,404.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,716.12 : 76,845.33 = 38,720.16 : x
  2. Step 2: Convert to fraction form
    55,716.12/76,845.33 = 38,720.16/x
  3. Step 3: Cross multiply
    55,716.12x = 76,845.33 × 38,720.16
  4. Step 4: Simplify right side
    55,716.12x = 2,975,463,472.85
  5. Step 5: Solve for x
    x = 2,975,463,472.85/55,716.12
  6. Step 6: Final answer
    x = 53,404.00

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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.