Home / 86,775.03-130,136.63-30,604.50

Finding the Fourth Proportional to 86,775.03, 130,136.63 and 30,604.50

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Solution

The fourth proportional to 86,775.03, 130,136.63 and 30,604.50 is: 45,897.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,775.03 : 130,136.63 = 30,604.50 : x
  2. Step 2: Convert to fraction form
    86,775.03/130,136.63 = 30,604.50/x
  3. Step 3: Cross multiply
    86,775.03x = 130,136.63 × 30,604.50
  4. Step 4: Simplify right side
    86,775.03x = 3,982,766,339.81
  5. Step 5: Solve for x
    x = 3,982,766,339.81/86,775.03
  6. Step 6: Final answer
    x = 45,897.61

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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.