Home / 47,140.38-70,703.28-30,617.60

Finding the Fourth Proportional to 47,140.38, 70,703.28 and 30,617.60

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Solution

The fourth proportional to 47,140.38, 70,703.28 and 30,617.60 is: 45,921.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,140.38 : 70,703.28 = 30,617.60 : x
  2. Step 2: Convert to fraction form
    47,140.38/70,703.28 = 30,617.60/x
  3. Step 3: Cross multiply
    47,140.38x = 70,703.28 × 30,617.60
  4. Step 4: Simplify right side
    47,140.38x = 2,164,764,392.21
  5. Step 5: Solve for x
    x = 2,164,764,392.21/47,140.38
  6. Step 6: Final answer
    x = 45,921.66

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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.