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Finding the Fourth Proportional to 60,713.73, 91,111.02 and 21,270.78

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Solution

The fourth proportional to 60,713.73, 91,111.02 and 21,270.78 is: 31,920.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,713.73 : 91,111.02 = 21,270.78 : x
  2. Step 2: Convert to fraction form
    60,713.73/91,111.02 = 21,270.78/x
  3. Step 3: Cross multiply
    60,713.73x = 91,111.02 × 21,270.78
  4. Step 4: Simplify right side
    60,713.73x = 1,938,002,462.00
  5. Step 5: Solve for x
    x = 1,938,002,462.00/60,713.73
  6. Step 6: Final answer
    x = 31,920.33

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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.