Home / 47,143.02-70,704.58-13,854.05

Finding the Fourth Proportional to 47,143.02, 70,704.58 and 13,854.05

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Solution

The fourth proportional to 47,143.02, 70,704.58 and 13,854.05 is: 20,778.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,143.02 : 70,704.58 = 13,854.05 : x
  2. Step 2: Convert to fraction form
    47,143.02/70,704.58 = 13,854.05/x
  3. Step 3: Cross multiply
    47,143.02x = 70,704.58 × 13,854.05
  4. Step 4: Simplify right side
    47,143.02x = 979,544,786.55
  5. Step 5: Solve for x
    x = 979,544,786.55/47,143.02
  6. Step 6: Final answer
    x = 20,778.15

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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.