Home / 66,010.11-90,939.96-54,003.48

Finding the Fourth Proportional to 66,010.11, 90,939.96 and 54,003.48

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Solution

The fourth proportional to 66,010.11, 90,939.96 and 54,003.48 is: 74,398.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,010.11 : 90,939.96 = 54,003.48 : x
  2. Step 2: Convert to fraction form
    66,010.11/90,939.96 = 54,003.48/x
  3. Step 3: Cross multiply
    66,010.11x = 90,939.96 × 54,003.48
  4. Step 4: Simplify right side
    66,010.11x = 4,911,074,311.06
  5. Step 5: Solve for x
    x = 4,911,074,311.06/66,010.11
  6. Step 6: Final answer
    x = 74,398.82

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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.