Home / 91,068.46-125,671.18-52,828.78

Finding the Fourth Proportional to 91,068.46, 125,671.18 and 52,828.78

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Solution

The fourth proportional to 91,068.46, 125,671.18 and 52,828.78 is: 72,901.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,068.46 : 125,671.18 = 52,828.78 : x
  2. Step 2: Convert to fraction form
    91,068.46/125,671.18 = 52,828.78/x
  3. Step 3: Cross multiply
    91,068.46x = 125,671.18 × 52,828.78
  4. Step 4: Simplify right side
    91,068.46x = 6,639,055,120.56
  5. Step 5: Solve for x
    x = 6,639,055,120.56/91,068.46
  6. Step 6: Final answer
    x = 72,901.81

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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.