Home / 79,931.21-119,782.40-58,704.75

Finding the Fourth Proportional to 79,931.21, 119,782.40 and 58,704.75

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Solution

The fourth proportional to 79,931.21, 119,782.40 and 58,704.75 is: 87,973.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,931.21 : 119,782.40 = 58,704.75 : x
  2. Step 2: Convert to fraction form
    79,931.21/119,782.40 = 58,704.75/x
  3. Step 3: Cross multiply
    79,931.21x = 119,782.40 × 58,704.75
  4. Step 4: Simplify right side
    79,931.21x = 7,031,795,552.88
  5. Step 5: Solve for x
    x = 7,031,795,552.88/79,931.21
  6. Step 6: Final answer
    x = 87,973.10

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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.