Home / 55,313.92-76,336.32-30,165.76

Finding the Fourth Proportional to 55,313.92, 76,336.32 and 30,165.76

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Solution

The fourth proportional to 55,313.92, 76,336.32 and 30,165.76 is: 41,630.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,313.92 : 76,336.32 = 30,165.76 : x
  2. Step 2: Convert to fraction form
    55,313.92/76,336.32 = 30,165.76/x
  3. Step 3: Cross multiply
    55,313.92x = 76,336.32 × 30,165.76
  4. Step 4: Simplify right side
    55,313.92x = 2,302,743,108.40
  5. Step 5: Solve for x
    x = 2,302,743,108.40/55,313.92
  6. Step 6: Final answer
    x = 41,630.45

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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.