Home / 47,136.52-70,712.64-21,861.36

Finding the Fourth Proportional to 47,136.52, 70,712.64 and 21,861.36

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Solution

The fourth proportional to 47,136.52, 70,712.64 and 21,861.36 is: 32,795.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,136.52 : 70,712.64 = 21,861.36 : x
  2. Step 2: Convert to fraction form
    47,136.52/70,712.64 = 21,861.36/x
  3. Step 3: Cross multiply
    47,136.52x = 70,712.64 × 21,861.36
  4. Step 4: Simplify right side
    47,136.52x = 1,545,874,479.59
  5. Step 5: Solve for x
    x = 1,545,874,479.59/47,136.52
  6. Step 6: Final answer
    x = 32,795.69

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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.