Home / 53,290.95-79,919.11-17,742.72

Finding the Fourth Proportional to 53,290.95, 79,919.11 and 17,742.72

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Solution

The fourth proportional to 53,290.95, 79,919.11 and 17,742.72 is: 26,608.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,290.95 : 79,919.11 = 17,742.72 : x
  2. Step 2: Convert to fraction form
    53,290.95/79,919.11 = 17,742.72/x
  3. Step 3: Cross multiply
    53,290.95x = 79,919.11 × 17,742.72
  4. Step 4: Simplify right side
    53,290.95x = 1,417,982,500.96
  5. Step 5: Solve for x
    x = 1,417,982,500.96/53,290.95
  6. Step 6: Final answer
    x = 26,608.32

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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.