Home / 47,139.92-70,729.46-19,079.81

Finding the Fourth Proportional to 47,139.92, 70,729.46 and 19,079.81

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Solution

The fourth proportional to 47,139.92, 70,729.46 and 19,079.81 is: 28,627.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,139.92 : 70,729.46 = 19,079.81 : x
  2. Step 2: Convert to fraction form
    47,139.92/70,729.46 = 19,079.81/x
  3. Step 3: Cross multiply
    47,139.92x = 70,729.46 × 19,079.81
  4. Step 4: Simplify right side
    47,139.92x = 1,349,504,209.16
  5. Step 5: Solve for x
    x = 1,349,504,209.16/47,139.92
  6. Step 6: Final answer
    x = 28,627.63

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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.