Home / 54,343.20-81,514.80-35,316.30

Finding the Fourth Proportional to 54,343.20, 81,514.80 and 35,316.30

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Solution

The fourth proportional to 54,343.20, 81,514.80 and 35,316.30 is: 52,974.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,343.20 : 81,514.80 = 35,316.30 : x
  2. Step 2: Convert to fraction form
    54,343.20/81,514.80 = 35,316.30/x
  3. Step 3: Cross multiply
    54,343.20x = 81,514.80 × 35,316.30
  4. Step 4: Simplify right side
    54,343.20x = 2,878,801,131.24
  5. Step 5: Solve for x
    x = 2,878,801,131.24/54,343.20
  6. Step 6: Final answer
    x = 52,974.45

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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.