Home / 86,774.43-130,136.09-39,362.10

Finding the Fourth Proportional to 86,774.43, 130,136.09 and 39,362.10

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Solution

The fourth proportional to 86,774.43, 130,136.09 and 39,362.10 is: 59,031.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,774.43 : 130,136.09 = 39,362.10 : x
  2. Step 2: Convert to fraction form
    86,774.43/130,136.09 = 39,362.10/x
  3. Step 3: Cross multiply
    86,774.43x = 130,136.09 × 39,362.10
  4. Step 4: Simplify right side
    86,774.43x = 5,122,429,591.38
  5. Step 5: Solve for x
    x = 5,122,429,591.38/86,774.43
  6. Step 6: Final answer
    x = 59,031.56

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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.