Home / 76,255.21-114,359.80-28,854.42

Finding the Fourth Proportional to 76,255.21, 114,359.80 and 28,854.42

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Solution

The fourth proportional to 76,255.21, 114,359.80 and 28,854.42 is: 43,272.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,255.21 : 114,359.80 = 28,854.42 : x
  2. Step 2: Convert to fraction form
    76,255.21/114,359.80 = 28,854.42/x
  3. Step 3: Cross multiply
    76,255.21x = 114,359.80 × 28,854.42
  4. Step 4: Simplify right side
    76,255.21x = 3,299,785,700.32
  5. Step 5: Solve for x
    x = 3,299,785,700.32/76,255.21
  6. Step 6: Final answer
    x = 43,272.92

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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.