Home / 76,221.28-114,120.64-57,444.48

Finding the Fourth Proportional to 76,221.28, 114,120.64 and 57,444.48

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Solution

The fourth proportional to 76,221.28, 114,120.64 and 57,444.48 is: 86,007.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,221.28 : 114,120.64 = 57,444.48 : x
  2. Step 2: Convert to fraction form
    76,221.28/114,120.64 = 57,444.48/x
  3. Step 3: Cross multiply
    76,221.28x = 114,120.64 × 57,444.48
  4. Step 4: Simplify right side
    76,221.28x = 6,555,600,822.07
  5. Step 5: Solve for x
    x = 6,555,600,822.07/76,221.28
  6. Step 6: Final answer
    x = 86,007.49

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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.