Home / 55,381.36-76,423.62-31,505.80

Finding the Fourth Proportional to 55,381.36, 76,423.62 and 31,505.80

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Solution

The fourth proportional to 55,381.36, 76,423.62 and 31,505.80 is: 43,476.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,381.36 : 76,423.62 = 31,505.80 : x
  2. Step 2: Convert to fraction form
    55,381.36/76,423.62 = 31,505.80/x
  3. Step 3: Cross multiply
    55,381.36x = 76,423.62 × 31,505.80
  4. Step 4: Simplify right side
    55,381.36x = 2,407,787,287.00
  5. Step 5: Solve for x
    x = 2,407,787,287.00/55,381.36
  6. Step 6: Final answer
    x = 43,476.49

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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.