Home / 66,285.90-91,474.37-36,071.21

Finding the Fourth Proportional to 66,285.90, 91,474.37 and 36,071.21

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Solution

The fourth proportional to 66,285.90, 91,474.37 and 36,071.21 is: 49,778.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,285.90 : 91,474.37 = 36,071.21 : x
  2. Step 2: Convert to fraction form
    66,285.90/91,474.37 = 36,071.21/x
  3. Step 3: Cross multiply
    66,285.90x = 91,474.37 × 36,071.21
  4. Step 4: Simplify right side
    66,285.90x = 3,299,591,209.89
  5. Step 5: Solve for x
    x = 3,299,591,209.89/66,285.90
  6. Step 6: Final answer
    x = 49,778.18

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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.