Home / 51,788.40-71,449.56-30,557.04

Finding the Fourth Proportional to 51,788.40, 71,449.56 and 30,557.04

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Solution

The fourth proportional to 51,788.40, 71,449.56 and 30,557.04 is: 42,157.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,788.40 : 71,449.56 = 30,557.04 : x
  2. Step 2: Convert to fraction form
    51,788.40/71,449.56 = 30,557.04/x
  3. Step 3: Cross multiply
    51,788.40x = 71,449.56 × 30,557.04
  4. Step 4: Simplify right side
    51,788.40x = 2,183,287,062.90
  5. Step 5: Solve for x
    x = 2,183,287,062.90/51,788.40
  6. Step 6: Final answer
    x = 42,157.84

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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.