Home / 90,627.13-125,056.43-54,318.98

Finding the Fourth Proportional to 90,627.13, 125,056.43 and 54,318.98

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Solution

The fourth proportional to 90,627.13, 125,056.43 and 54,318.98 is: 74,954.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,627.13 : 125,056.43 = 54,318.98 : x
  2. Step 2: Convert to fraction form
    90,627.13/125,056.43 = 54,318.98/x
  3. Step 3: Cross multiply
    90,627.13x = 125,056.43 × 54,318.98
  4. Step 4: Simplify right side
    90,627.13x = 6,792,937,720.04
  5. Step 5: Solve for x
    x = 6,792,937,720.04/90,627.13
  6. Step 6: Final answer
    x = 74,954.79

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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.