Home / 91,286.16-136,929.29-59,722.74

Finding the Fourth Proportional to 91,286.16, 136,929.29 and 59,722.74

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Solution

The fourth proportional to 91,286.16, 136,929.29 and 59,722.74 is: 89,584.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,286.16 : 136,929.29 = 59,722.74 : x
  2. Step 2: Convert to fraction form
    91,286.16/136,929.29 = 59,722.74/x
  3. Step 3: Cross multiply
    91,286.16x = 136,929.29 × 59,722.74
  4. Step 4: Simplify right side
    91,286.16x = 8,177,792,385.05
  5. Step 5: Solve for x
    x = 8,177,792,385.05/91,286.16
  6. Step 6: Final answer
    x = 89,584.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.