Home / 57,112.29-78,856.54-45,843.77

Finding the Fourth Proportional to 57,112.29, 78,856.54 and 45,843.77

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Solution

The fourth proportional to 57,112.29, 78,856.54 and 45,843.77 is: 63,297.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,112.29 : 78,856.54 = 45,843.77 : x
  2. Step 2: Convert to fraction form
    57,112.29/78,856.54 = 45,843.77/x
  3. Step 3: Cross multiply
    57,112.29x = 78,856.54 × 45,843.77
  4. Step 4: Simplify right side
    57,112.29x = 3,615,081,165.29
  5. Step 5: Solve for x
    x = 3,615,081,165.29/57,112.29
  6. Step 6: Final answer
    x = 63,297.78

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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.