Home / 67,485.62-93,142.17-40,263.41

Finding the Fourth Proportional to 67,485.62, 93,142.17 and 40,263.41

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Solution

The fourth proportional to 67,485.62, 93,142.17 and 40,263.41 is: 55,570.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,485.62 : 93,142.17 = 40,263.41 : x
  2. Step 2: Convert to fraction form
    67,485.62/93,142.17 = 40,263.41/x
  3. Step 3: Cross multiply
    67,485.62x = 93,142.17 × 40,263.41
  4. Step 4: Simplify right side
    67,485.62x = 3,750,221,611.86
  5. Step 5: Solve for x
    x = 3,750,221,611.86/67,485.62
  6. Step 6: Final answer
    x = 55,570.68

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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.