Home / 53,642.31-80,445.21-18,573.75

Finding the Fourth Proportional to 53,642.31, 80,445.21 and 18,573.75

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Solution

The fourth proportional to 53,642.31, 80,445.21 and 18,573.75 is: 27,854.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,642.31 : 80,445.21 = 18,573.75 : x
  2. Step 2: Convert to fraction form
    53,642.31/80,445.21 = 18,573.75/x
  3. Step 3: Cross multiply
    53,642.31x = 80,445.21 × 18,573.75
  4. Step 4: Simplify right side
    53,642.31x = 1,494,169,219.24
  5. Step 5: Solve for x
    x = 1,494,169,219.24/53,642.31
  6. Step 6: Final answer
    x = 27,854.30

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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.