Home / 55,242.13-76,228.46-31,039.25

Finding the Fourth Proportional to 55,242.13, 76,228.46 and 31,039.25

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Solution

The fourth proportional to 55,242.13, 76,228.46 and 31,039.25 is: 42,830.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,242.13 : 76,228.46 = 31,039.25 : x
  2. Step 2: Convert to fraction form
    55,242.13/76,228.46 = 31,039.25/x
  3. Step 3: Cross multiply
    55,242.13x = 76,228.46 × 31,039.25
  4. Step 4: Simplify right side
    55,242.13x = 2,366,073,976.57
  5. Step 5: Solve for x
    x = 2,366,073,976.57/55,242.13
  6. Step 6: Final answer
    x = 42,830.97

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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.