Home / 86,623.20-129,837.60-49,201.20

Finding the Fourth Proportional to 86,623.20, 129,837.60 and 49,201.20

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Solution

The fourth proportional to 86,623.20, 129,837.60 and 49,201.20 is: 73,746.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,623.20 : 129,837.60 = 49,201.20 : x
  2. Step 2: Convert to fraction form
    86,623.20/129,837.60 = 49,201.20/x
  3. Step 3: Cross multiply
    86,623.20x = 129,837.60 × 49,201.20
  4. Step 4: Simplify right side
    86,623.20x = 6,388,165,725.12
  5. Step 5: Solve for x
    x = 6,388,165,725.12/86,623.20
  6. Step 6: Final answer
    x = 73,746.59

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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.