Home / 55,228.92-76,214.70-31,355.16

Finding the Fourth Proportional to 55,228.92, 76,214.70 and 31,355.16

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Solution

The fourth proportional to 55,228.92, 76,214.70 and 31,355.16 is: 43,269.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,228.92 : 76,214.70 = 31,355.16 : x
  2. Step 2: Convert to fraction form
    55,228.92/76,214.70 = 31,355.16/x
  3. Step 3: Cross multiply
    55,228.92x = 76,214.70 × 31,355.16
  4. Step 4: Simplify right side
    55,228.92x = 2,389,724,112.85
  5. Step 5: Solve for x
    x = 2,389,724,112.85/55,228.92
  6. Step 6: Final answer
    x = 43,269.43

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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.