Home / 81,460.43-112,409.69-45,161.54

Finding the Fourth Proportional to 81,460.43, 112,409.69 and 45,161.54

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Solution

The fourth proportional to 81,460.43, 112,409.69 and 45,161.54 is: 62,319.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,460.43 : 112,409.69 = 45,161.54 : x
  2. Step 2: Convert to fraction form
    81,460.43/112,409.69 = 45,161.54/x
  3. Step 3: Cross multiply
    81,460.43x = 112,409.69 × 45,161.54
  4. Step 4: Simplify right side
    81,460.43x = 5,076,595,105.25
  5. Step 5: Solve for x
    x = 5,076,595,105.25/81,460.43
  6. Step 6: Final answer
    x = 62,319.77

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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.