Home / 47,178.18-70,767.27-12,117.87

Finding the Fourth Proportional to 47,178.18, 70,767.27 and 12,117.87

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Solution

The fourth proportional to 47,178.18, 70,767.27 and 12,117.87 is: 18,176.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,178.18 : 70,767.27 = 12,117.87 : x
  2. Step 2: Convert to fraction form
    47,178.18/70,767.27 = 12,117.87/x
  3. Step 3: Cross multiply
    47,178.18x = 70,767.27 × 12,117.87
  4. Step 4: Simplify right side
    47,178.18x = 857,548,578.11
  5. Step 5: Solve for x
    x = 857,548,578.11/47,178.18
  6. Step 6: Final answer
    x = 18,176.81

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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.