Home / 54,554.72-75,279.40-30,680.89

Finding the Fourth Proportional to 54,554.72, 75,279.40 and 30,680.89

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Solution

The fourth proportional to 54,554.72, 75,279.40 and 30,680.89 is: 42,336.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,554.72 : 75,279.40 = 30,680.89 : x
  2. Step 2: Convert to fraction form
    54,554.72/75,279.40 = 30,680.89/x
  3. Step 3: Cross multiply
    54,554.72x = 75,279.40 × 30,680.89
  4. Step 4: Simplify right side
    54,554.72x = 2,309,638,725.77
  5. Step 5: Solve for x
    x = 2,309,638,725.77/54,554.72
  6. Step 6: Final answer
    x = 42,336.18

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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.