Home / 81,919.43-113,048.78-46,109.63

Finding the Fourth Proportional to 81,919.43, 113,048.78 and 46,109.63

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Solution

The fourth proportional to 81,919.43, 113,048.78 and 46,109.63 is: 63,631.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,919.43 : 113,048.78 = 46,109.63 : x
  2. Step 2: Convert to fraction form
    81,919.43/113,048.78 = 46,109.63/x
  3. Step 3: Cross multiply
    81,919.43x = 113,048.78 × 46,109.63
  4. Step 4: Simplify right side
    81,919.43x = 5,212,637,417.75
  5. Step 5: Solve for x
    x = 5,212,637,417.75/81,919.43
  6. Step 6: Final answer
    x = 63,631.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.