Home / 67,049.47-100,541.67-38,977.57

Finding the Fourth Proportional to 67,049.47, 100,541.67 and 38,977.57

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Solution

The fourth proportional to 67,049.47, 100,541.67 and 38,977.57 is: 58,447.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,049.47 : 100,541.67 = 38,977.57 : x
  2. Step 2: Convert to fraction form
    67,049.47/100,541.67 = 38,977.57/x
  3. Step 3: Cross multiply
    67,049.47x = 100,541.67 × 38,977.57
  4. Step 4: Simplify right side
    67,049.47x = 3,918,869,980.34
  5. Step 5: Solve for x
    x = 3,918,869,980.34/67,049.47
  6. Step 6: Final answer
    x = 58,447.44

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1.5x scale

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.