Home / 67,209.12-92,729.61-43,349.76

Finding the Fourth Proportional to 67,209.12, 92,729.61 and 43,349.76

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Solution

The fourth proportional to 67,209.12, 92,729.61 and 43,349.76 is: 59,810.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,209.12 : 92,729.61 = 43,349.76 : x
  2. Step 2: Convert to fraction form
    67,209.12/92,729.61 = 43,349.76/x
  3. Step 3: Cross multiply
    67,209.12x = 92,729.61 × 43,349.76
  4. Step 4: Simplify right side
    67,209.12x = 4,019,806,338.39
  5. Step 5: Solve for x
    x = 4,019,806,338.39/67,209.12
  6. Step 6: Final answer
    x = 59,810.43

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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.