Home / 65,185.06-89,966.65-36,890.75

Finding the Fourth Proportional to 65,185.06, 89,966.65 and 36,890.75

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Solution

The fourth proportional to 65,185.06, 89,966.65 and 36,890.75 is: 50,915.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,185.06 : 89,966.65 = 36,890.75 : x
  2. Step 2: Convert to fraction form
    65,185.06/89,966.65 = 36,890.75/x
  3. Step 3: Cross multiply
    65,185.06x = 89,966.65 × 36,890.75
  4. Step 4: Simplify right side
    65,185.06x = 3,318,937,193.49
  5. Step 5: Solve for x
    x = 3,318,937,193.49/65,185.06
  6. Step 6: Final answer
    x = 50,915.61

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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.