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Finding the Fourth Proportional to 60,936.96, 91,407.47 and 20,955.55

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Solution

The fourth proportional to 60,936.96, 91,407.47 and 20,955.55 is: 31,434.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,936.96 : 91,407.47 = 20,955.55 : x
  2. Step 2: Convert to fraction form
    60,936.96/91,407.47 = 20,955.55/x
  3. Step 3: Cross multiply
    60,936.96x = 91,407.47 × 20,955.55
  4. Step 4: Simplify right side
    60,936.96x = 1,915,493,932.60
  5. Step 5: Solve for x
    x = 1,915,493,932.60/60,936.96
  6. Step 6: Final answer
    x = 31,434.02

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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.