Home / 62,915.40-86,819.64-34,621.09

Finding the Fourth Proportional to 62,915.40, 86,819.64 and 34,621.09

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Solution

The fourth proportional to 62,915.40, 86,819.64 and 34,621.09 is: 47,775.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,915.40 : 86,819.64 = 34,621.09 : x
  2. Step 2: Convert to fraction form
    62,915.40/86,819.64 = 34,621.09/x
  3. Step 3: Cross multiply
    62,915.40x = 86,819.64 × 34,621.09
  4. Step 4: Simplify right side
    62,915.40x = 3,005,790,136.11
  5. Step 5: Solve for x
    x = 3,005,790,136.11/62,915.40
  6. Step 6: Final answer
    x = 47,775.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.