Home / 91,828.80-137,743.20-62,085.60

Finding the Fourth Proportional to 91,828.80, 137,743.20 and 62,085.60

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Solution

The fourth proportional to 91,828.80, 137,743.20 and 62,085.60 is: 93,128.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,828.80 : 137,743.20 = 62,085.60 : x
  2. Step 2: Convert to fraction form
    91,828.80/137,743.20 = 62,085.60/x
  3. Step 3: Cross multiply
    91,828.80x = 137,743.20 × 62,085.60
  4. Step 4: Simplify right side
    91,828.80x = 8,551,869,217.92
  5. Step 5: Solve for x
    x = 8,551,869,217.92/91,828.80
  6. Step 6: Final answer
    x = 93,128.40

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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.