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Finding the Fourth Proportional to 60,937.39, 91,408.10 and 20,955.97

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Solution

The fourth proportional to 60,937.39, 91,408.10 and 20,955.97 is: 31,434.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,937.39 : 91,408.10 = 20,955.97 : x
  2. Step 2: Convert to fraction form
    60,937.39/91,408.10 = 20,955.97/x
  3. Step 3: Cross multiply
    60,937.39x = 91,408.10 × 20,955.97
  4. Step 4: Simplify right side
    60,937.39x = 1,915,545,785.80
  5. Step 5: Solve for x
    x = 1,915,545,785.80/60,937.39
  6. Step 6: Final answer
    x = 31,434.66

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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.