Home / 76,756.32-115,133.84-21,352.16

Finding the Fourth Proportional to 76,756.32, 115,133.84 and 21,352.16

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Solution

The fourth proportional to 76,756.32, 115,133.84 and 21,352.16 is: 32,028.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,756.32 : 115,133.84 = 21,352.16 : x
  2. Step 2: Convert to fraction form
    76,756.32/115,133.84 = 21,352.16/x
  3. Step 3: Cross multiply
    76,756.32x = 115,133.84 × 21,352.16
  4. Step 4: Simplify right side
    76,756.32x = 2,458,356,173.09
  5. Step 5: Solve for x
    x = 2,458,356,173.09/76,756.32
  6. Step 6: Final answer
    x = 32,028.06

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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.