Home / 40,498.80-60,748.20-20,779.35

Finding the Fourth Proportional to 40,498.80, 60,748.20 and 20,779.35

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Solution

The fourth proportional to 40,498.80, 60,748.20 and 20,779.35 is: 31,169.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,498.80 : 60,748.20 = 20,779.35 : x
  2. Step 2: Convert to fraction form
    40,498.80/60,748.20 = 20,779.35/x
  3. Step 3: Cross multiply
    40,498.80x = 60,748.20 × 20,779.35
  4. Step 4: Simplify right side
    40,498.80x = 1,262,308,109.67
  5. Step 5: Solve for x
    x = 1,262,308,109.67/40,498.80
  6. Step 6: Final answer
    x = 31,169.03

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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.