Home / 80,430.19-120,642.25-24,268.80

Finding the Fourth Proportional to 80,430.19, 120,642.25 and 24,268.80

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Solution

The fourth proportional to 80,430.19, 120,642.25 and 24,268.80 is: 36,402.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,430.19 : 120,642.25 = 24,268.80 : x
  2. Step 2: Convert to fraction form
    80,430.19/120,642.25 = 24,268.80/x
  3. Step 3: Cross multiply
    80,430.19x = 120,642.25 × 24,268.80
  4. Step 4: Simplify right side
    80,430.19x = 2,927,843,074.04
  5. Step 5: Solve for x
    x = 2,927,843,074.04/80,430.19
  6. Step 6: Final answer
    x = 36,402.29

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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.