Home / 47,069.52-70,627.37-20,742.90

Finding the Fourth Proportional to 47,069.52, 70,627.37 and 20,742.90

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Solution

The fourth proportional to 47,069.52, 70,627.37 and 20,742.90 is: 31,124.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,069.52 : 70,627.37 = 20,742.90 : x
  2. Step 2: Convert to fraction form
    47,069.52/70,627.37 = 20,742.90/x
  3. Step 3: Cross multiply
    47,069.52x = 70,627.37 × 20,742.90
  4. Step 4: Simplify right side
    47,069.52x = 1,465,016,369.46
  5. Step 5: Solve for x
    x = 1,465,016,369.46/47,069.52
  6. Step 6: Final answer
    x = 31,124.52

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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.