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Finding the Fourth Proportional to 66,237.75, 91,408.50 and 37,945.26

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Solution

The fourth proportional to 66,237.75, 91,408.50 and 37,945.26 is: 52,364.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,237.75 : 91,408.50 = 37,945.26 : x
  2. Step 2: Convert to fraction form
    66,237.75/91,408.50 = 37,945.26/x
  3. Step 3: Cross multiply
    66,237.75x = 91,408.50 × 37,945.26
  4. Step 4: Simplify right side
    66,237.75x = 3,468,519,298.71
  5. Step 5: Solve for x
    x = 3,468,519,298.71/66,237.75
  6. Step 6: Final answer
    x = 52,364.69

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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.