Home / 76,507.56-113,992.37-72,210.28

Finding the Fourth Proportional to 76,507.56, 113,992.37 and 72,210.28

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Solution

The fourth proportional to 76,507.56, 113,992.37 and 72,210.28 is: 107,589.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,507.56 : 113,992.37 = 72,210.28 : x
  2. Step 2: Convert to fraction form
    76,507.56/113,992.37 = 72,210.28/x
  3. Step 3: Cross multiply
    76,507.56x = 113,992.37 × 72,210.28
  4. Step 4: Simplify right side
    76,507.56x = 8,231,420,955.56
  5. Step 5: Solve for x
    x = 8,231,420,955.56/76,507.56
  6. Step 6: Final answer
    x = 107,589.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.