Home / 54,215.60-81,323.40-35,613.20

Finding the Fourth Proportional to 54,215.60, 81,323.40 and 35,613.20

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Solution

The fourth proportional to 54,215.60, 81,323.40 and 35,613.20 is: 53,419.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,215.60 : 81,323.40 = 35,613.20 : x
  2. Step 2: Convert to fraction form
    54,215.60/81,323.40 = 35,613.20/x
  3. Step 3: Cross multiply
    54,215.60x = 81,323.40 × 35,613.20
  4. Step 4: Simplify right side
    54,215.60x = 2,896,186,508.88
  5. Step 5: Solve for x
    x = 2,896,186,508.88/54,215.60
  6. Step 6: Final answer
    x = 53,419.80

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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.