Home / 55,827.39-83,736.21-18,387.18

Finding the Fourth Proportional to 55,827.39, 83,736.21 and 18,387.18

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Solution

The fourth proportional to 55,827.39, 83,736.21 and 18,387.18 is: 27,579.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,827.39 : 83,736.21 = 18,387.18 : x
  2. Step 2: Convert to fraction form
    55,827.39/83,736.21 = 18,387.18/x
  3. Step 3: Cross multiply
    55,827.39x = 83,736.21 × 18,387.18
  4. Step 4: Simplify right side
    55,827.39x = 1,539,672,765.79
  5. Step 5: Solve for x
    x = 1,539,672,765.79/55,827.39
  6. Step 6: Final answer
    x = 27,579.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.