Home / 79,311.66-109,455.84-45,319.36

Finding the Fourth Proportional to 79,311.66, 109,455.84 and 45,319.36

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Solution

The fourth proportional to 79,311.66, 109,455.84 and 45,319.36 is: 62,544.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,311.66 : 109,455.84 = 45,319.36 : x
  2. Step 2: Convert to fraction form
    79,311.66/109,455.84 = 45,319.36/x
  3. Step 3: Cross multiply
    79,311.66x = 109,455.84 × 45,319.36
  4. Step 4: Simplify right side
    79,311.66x = 4,960,468,617.06
  5. Step 5: Solve for x
    x = 4,960,468,617.06/79,311.66
  6. Step 6: Final answer
    x = 62,544.00

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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.