Home / 55,391.48-76,439.85-30,240.98

Finding the Fourth Proportional to 55,391.48, 76,439.85 and 30,240.98

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Solution

The fourth proportional to 55,391.48, 76,439.85 and 30,240.98 is: 41,732.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,391.48 : 76,439.85 = 30,240.98 : x
  2. Step 2: Convert to fraction form
    55,391.48/76,439.85 = 30,240.98/x
  3. Step 3: Cross multiply
    55,391.48x = 76,439.85 × 30,240.98
  4. Step 4: Simplify right side
    55,391.48x = 2,311,615,936.21
  5. Step 5: Solve for x
    x = 2,311,615,936.21/55,391.48
  6. Step 6: Final answer
    x = 41,732.34

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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.