Home / 86,789.02-130,136.70-39,378.24

Finding the Fourth Proportional to 86,789.02, 130,136.70 and 39,378.24

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Solution

The fourth proportional to 86,789.02, 130,136.70 and 39,378.24 is: 59,046.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,789.02 : 130,136.70 = 39,378.24 : x
  2. Step 2: Convert to fraction form
    86,789.02/130,136.70 = 39,378.24/x
  3. Step 3: Cross multiply
    86,789.02x = 130,136.70 × 39,378.24
  4. Step 4: Simplify right side
    86,789.02x = 5,124,554,205.41
  5. Step 5: Solve for x
    x = 5,124,554,205.41/86,789.02
  6. Step 6: Final answer
    x = 59,046.11

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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.