Home / 86,329.25-129,512.40-48,907.25

Finding the Fourth Proportional to 86,329.25, 129,512.40 and 48,907.25

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Solution

The fourth proportional to 86,329.25, 129,512.40 and 48,907.25 is: 73,371.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,329.25 : 129,512.40 = 48,907.25 : x
  2. Step 2: Convert to fraction form
    86,329.25/129,512.40 = 48,907.25/x
  3. Step 3: Cross multiply
    86,329.25x = 129,512.40 × 48,907.25
  4. Step 4: Simplify right side
    86,329.25x = 6,334,095,324.90
  5. Step 5: Solve for x
    x = 6,334,095,324.90/86,329.25
  6. Step 6: Final answer
    x = 73,371.37

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1.5x scale

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.