Home / 66,009.36-90,938.93-54,002.73

Finding the Fourth Proportional to 66,009.36, 90,938.93 and 54,002.73

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Solution

The fourth proportional to 66,009.36, 90,938.93 and 54,002.73 is: 74,397.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,009.36 : 90,938.93 = 54,002.73 : x
  2. Step 2: Convert to fraction form
    66,009.36/90,938.93 = 54,002.73/x
  3. Step 3: Cross multiply
    66,009.36x = 90,938.93 × 54,002.73
  4. Step 4: Simplify right side
    66,009.36x = 4,910,950,213.27
  5. Step 5: Solve for x
    x = 4,910,950,213.27/66,009.36
  6. Step 6: Final answer
    x = 74,397.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.