Home / 66,228.75-91,395.68-36,420.75

Finding the Fourth Proportional to 66,228.75, 91,395.68 and 36,420.75

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Solution

The fourth proportional to 66,228.75, 91,395.68 and 36,420.75 is: 50,260.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,228.75 : 91,395.68 = 36,420.75 : x
  2. Step 2: Convert to fraction form
    66,228.75/91,395.68 = 36,420.75/x
  3. Step 3: Cross multiply
    66,228.75x = 91,395.68 × 36,420.75
  4. Step 4: Simplify right side
    66,228.75x = 3,328,699,030.26
  5. Step 5: Solve for x
    x = 3,328,699,030.26/66,228.75
  6. Step 6: Final answer
    x = 50,260.64

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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.