Home / 63,136.08-87,159.33-39,270.42

Finding the Fourth Proportional to 63,136.08, 87,159.33 and 39,270.42

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Solution

The fourth proportional to 63,136.08, 87,159.33 and 39,270.42 is: 54,212.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,136.08 : 87,159.33 = 39,270.42 : x
  2. Step 2: Convert to fraction form
    63,136.08/87,159.33 = 39,270.42/x
  3. Step 3: Cross multiply
    63,136.08x = 87,159.33 × 39,270.42
  4. Step 4: Simplify right side
    63,136.08x = 3,422,783,496.02
  5. Step 5: Solve for x
    x = 3,422,783,496.02/63,136.08
  6. Step 6: Final answer
    x = 54,212.80

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1.5x scale

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.