Home / 79,677.12-119,589.51-40,261.86

Finding the Fourth Proportional to 79,677.12, 119,589.51 and 40,261.86

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Solution

The fourth proportional to 79,677.12, 119,589.51 and 40,261.86 is: 60,430.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,677.12 : 119,589.51 = 40,261.86 : x
  2. Step 2: Convert to fraction form
    79,677.12/119,589.51 = 40,261.86/x
  3. Step 3: Cross multiply
    79,677.12x = 119,589.51 × 40,261.86
  4. Step 4: Simplify right side
    79,677.12x = 4,814,896,109.09
  5. Step 5: Solve for x
    x = 4,814,896,109.09/79,677.12
  6. Step 6: Final answer
    x = 60,430.10

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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.