Home / 81,736.51-122,595.45-28,418.26

Finding the Fourth Proportional to 81,736.51, 122,595.45 and 28,418.26

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Solution

The fourth proportional to 81,736.51, 122,595.45 and 28,418.26 is: 42,624.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,736.51 : 122,595.45 = 28,418.26 : x
  2. Step 2: Convert to fraction form
    81,736.51/122,595.45 = 28,418.26/x
  3. Step 3: Cross multiply
    81,736.51x = 122,595.45 × 28,418.26
  4. Step 4: Simplify right side
    81,736.51x = 3,483,949,372.92
  5. Step 5: Solve for x
    x = 3,483,949,372.92/81,736.51
  6. Step 6: Final answer
    x = 42,624.15

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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.