Home / 79,704.20-109,987.58-45,710.93

Finding the Fourth Proportional to 79,704.20, 109,987.58 and 45,710.93

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Solution

The fourth proportional to 79,704.20, 109,987.58 and 45,710.93 is: 63,078.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,704.20 : 109,987.58 = 45,710.93 : x
  2. Step 2: Convert to fraction form
    79,704.20/109,987.58 = 45,710.93/x
  3. Step 3: Cross multiply
    79,704.20x = 109,987.58 × 45,710.93
  4. Step 4: Simplify right side
    79,704.20x = 5,027,634,570.25
  5. Step 5: Solve for x
    x = 5,027,634,570.25/79,704.20
  6. Step 6: Final answer
    x = 63,078.67

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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.