Home / 47,149.38-70,728.32-12,089.34

Finding the Fourth Proportional to 47,149.38, 70,728.32 and 12,089.34

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Solution

The fourth proportional to 47,149.38, 70,728.32 and 12,089.34 is: 18,135.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,149.38 : 70,728.32 = 12,089.34 : x
  2. Step 2: Convert to fraction form
    47,149.38/70,728.32 = 12,089.34/x
  3. Step 3: Cross multiply
    47,149.38x = 70,728.32 × 12,089.34
  4. Step 4: Simplify right side
    47,149.38x = 855,058,708.11
  5. Step 5: Solve for x
    x = 855,058,708.11/47,149.38
  6. Step 6: Final answer
    x = 18,135.10

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1.5x scale

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.