Home / 47,215.69-70,823.56-45,165.71

Finding the Fourth Proportional to 47,215.69, 70,823.56 and 45,165.71

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Solution

The fourth proportional to 47,215.69, 70,823.56 and 45,165.71 is: 67,748.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,215.69 : 70,823.56 = 45,165.71 : x
  2. Step 2: Convert to fraction form
    47,215.69/70,823.56 = 45,165.71/x
  3. Step 3: Cross multiply
    47,215.69x = 70,823.56 × 45,165.71
  4. Step 4: Simplify right side
    47,215.69x = 3,198,796,436.27
  5. Step 5: Solve for x
    x = 3,198,796,436.27/47,215.69
  6. Step 6: Final answer
    x = 67,748.59

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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.