Home / 47,149.40-70,724.10-12,089.36

Finding the Fourth Proportional to 47,149.40, 70,724.10 and 12,089.36

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Solution

The fourth proportional to 47,149.40, 70,724.10 and 12,089.36 is: 18,134.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,149.40 : 70,724.10 = 12,089.36 : x
  2. Step 2: Convert to fraction form
    47,149.40/70,724.10 = 12,089.36/x
  3. Step 3: Cross multiply
    47,149.40x = 70,724.10 × 12,089.36
  4. Step 4: Simplify right side
    47,149.40x = 855,009,105.58
  5. Step 5: Solve for x
    x = 855,009,105.58/47,149.40
  6. Step 6: Final answer
    x = 18,134.04

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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.