Home / 86,950.69-130,388.05-30,772.13

Finding the Fourth Proportional to 86,950.69, 130,388.05 and 30,772.13

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Solution

The fourth proportional to 86,950.69, 130,388.05 and 30,772.13 is: 46,144.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,950.69 : 130,388.05 = 30,772.13 : x
  2. Step 2: Convert to fraction form
    86,950.69/130,388.05 = 30,772.13/x
  3. Step 3: Cross multiply
    86,950.69x = 130,388.05 × 30,772.13
  4. Step 4: Simplify right side
    86,950.69x = 4,012,317,411.57
  5. Step 5: Solve for x
    x = 4,012,317,411.57/86,950.69
  6. Step 6: Final answer
    x = 46,144.75

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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.