Home / 47,118.28-70,709.76-19,416.28

Finding the Fourth Proportional to 47,118.28, 70,709.76 and 19,416.28

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Solution

The fourth proportional to 47,118.28, 70,709.76 and 19,416.28 is: 29,137.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,118.28 : 70,709.76 = 19,416.28 : x
  2. Step 2: Convert to fraction form
    47,118.28/70,709.76 = 19,416.28/x
  3. Step 3: Cross multiply
    47,118.28x = 70,709.76 × 19,416.28
  4. Step 4: Simplify right side
    47,118.28x = 1,372,920,498.89
  5. Step 5: Solve for x
    x = 1,372,920,498.89/47,118.28
  6. Step 6: Final answer
    x = 29,137.75

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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.