Home / 67,109.10-92,515.26-53,376.78

Finding the Fourth Proportional to 67,109.10, 92,515.26 and 53,376.78

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Solution

The fourth proportional to 67,109.10, 92,515.26 and 53,376.78 is: 73,584.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,109.10 : 92,515.26 = 53,376.78 : x
  2. Step 2: Convert to fraction form
    67,109.10/92,515.26 = 53,376.78/x
  3. Step 3: Cross multiply
    67,109.10x = 92,515.26 × 53,376.78
  4. Step 4: Simplify right side
    67,109.10x = 4,938,166,679.66
  5. Step 5: Solve for x
    x = 4,938,166,679.66/67,109.10
  6. Step 6: Final answer
    x = 73,584.16

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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.