Home / 91,628.96-137,464.97-28,445.86

Finding the Fourth Proportional to 91,628.96, 137,464.97 and 28,445.86

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Solution

The fourth proportional to 91,628.96, 137,464.97 and 28,445.86 is: 42,675.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,628.96 : 137,464.97 = 28,445.86 : x
  2. Step 2: Convert to fraction form
    91,628.96/137,464.97 = 28,445.86/x
  3. Step 3: Cross multiply
    91,628.96x = 137,464.97 × 28,445.86
  4. Step 4: Simplify right side
    91,628.96x = 3,910,308,805.63
  5. Step 5: Solve for x
    x = 3,910,308,805.63/91,628.96
  6. Step 6: Final answer
    x = 42,675.47

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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.