Home / 55,004.42-75,906.06-31,130.66

Finding the Fourth Proportional to 55,004.42, 75,906.06 and 31,130.66

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Solution

The fourth proportional to 55,004.42, 75,906.06 and 31,130.66 is: 42,960.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,004.42 : 75,906.06 = 31,130.66 : x
  2. Step 2: Convert to fraction form
    55,004.42/75,906.06 = 31,130.66/x
  3. Step 3: Cross multiply
    55,004.42x = 75,906.06 × 31,130.66
  4. Step 4: Simplify right side
    55,004.42x = 2,363,005,745.80
  5. Step 5: Solve for x
    x = 2,363,005,745.80/55,004.42
  6. Step 6: Final answer
    x = 42,960.29

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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.