Home / 67,811.07-93,580.14-39,136.70

Finding the Fourth Proportional to 67,811.07, 93,580.14 and 39,136.70

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Solution

The fourth proportional to 67,811.07, 93,580.14 and 39,136.70 is: 54,009.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,811.07 : 93,580.14 = 39,136.70 : x
  2. Step 2: Convert to fraction form
    67,811.07/93,580.14 = 39,136.70/x
  3. Step 3: Cross multiply
    67,811.07x = 93,580.14 × 39,136.70
  4. Step 4: Simplify right side
    67,811.07x = 3,662,418,245.85
  5. Step 5: Solve for x
    x = 3,662,418,245.85/67,811.07
  6. Step 6: Final answer
    x = 54,009.15

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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.