Home / 66,138.94-91,273.35-37,853.74

Finding the Fourth Proportional to 66,138.94, 91,273.35 and 37,853.74

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Solution

The fourth proportional to 66,138.94, 91,273.35 and 37,853.74 is: 52,239.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,138.94 : 91,273.35 = 37,853.74 : x
  2. Step 2: Convert to fraction form
    66,138.94/91,273.35 = 37,853.74/x
  3. Step 3: Cross multiply
    66,138.94x = 91,273.35 × 37,853.74
  4. Step 4: Simplify right side
    66,138.94x = 3,455,037,659.83
  5. Step 5: Solve for x
    x = 3,455,037,659.83/66,138.94
  6. Step 6: Final answer
    x = 52,239.08

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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.