Home / 54,074.88-74,630.40-31,720.96

Finding the Fourth Proportional to 54,074.88, 74,630.40 and 31,720.96

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Solution

The fourth proportional to 54,074.88, 74,630.40 and 31,720.96 is: 43,779.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,074.88 : 74,630.40 = 31,720.96 : x
  2. Step 2: Convert to fraction form
    54,074.88/74,630.40 = 31,720.96/x
  3. Step 3: Cross multiply
    54,074.88x = 74,630.40 × 31,720.96
  4. Step 4: Simplify right side
    54,074.88x = 2,367,347,933.18
  5. Step 5: Solve for x
    x = 2,367,347,933.18/54,074.88
  6. Step 6: Final answer
    x = 43,779.07

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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.