Home / 55,004.57-75,908.10-31,130.73

Finding the Fourth Proportional to 55,004.57, 75,908.10 and 31,130.73

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Solution

The fourth proportional to 55,004.57, 75,908.10 and 31,130.73 is: 42,961.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,004.57 : 75,908.10 = 31,130.73 : x
  2. Step 2: Convert to fraction form
    55,004.57/75,908.10 = 31,130.73/x
  3. Step 3: Cross multiply
    55,004.57x = 75,908.10 × 31,130.73
  4. Step 4: Simplify right side
    55,004.57x = 2,363,074,682.65
  5. Step 5: Solve for x
    x = 2,363,074,682.65/55,004.57
  6. Step 6: Final answer
    x = 42,961.43

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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.