Home / 79,520.08-109,693.64-50,395.12

Finding the Fourth Proportional to 79,520.08, 109,693.64 and 50,395.12

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Solution

The fourth proportional to 79,520.08, 109,693.64 and 50,395.12 is: 69,517.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,520.08 : 109,693.64 = 50,395.12 : x
  2. Step 2: Convert to fraction form
    79,520.08/109,693.64 = 50,395.12/x
  3. Step 3: Cross multiply
    79,520.08x = 109,693.64 × 50,395.12
  4. Step 4: Simplify right side
    79,520.08x = 5,528,024,151.04
  5. Step 5: Solve for x
    x = 5,528,024,151.04/79,520.08
  6. Step 6: Final answer
    x = 69,517.34

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1.5x scale

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.