Home / 79,389.64-109,563.24-52,485.40

Finding the Fourth Proportional to 79,389.64, 109,563.24 and 52,485.40

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Solution

The fourth proportional to 79,389.64, 109,563.24 and 52,485.40 is: 72,433.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,389.64 : 109,563.24 = 52,485.40 : x
  2. Step 2: Convert to fraction form
    79,389.64/109,563.24 = 52,485.40/x
  3. Step 3: Cross multiply
    79,389.64x = 109,563.24 × 52,485.40
  4. Step 4: Simplify right side
    79,389.64x = 5,750,470,476.70
  5. Step 5: Solve for x
    x = 5,750,470,476.70/79,389.64
  6. Step 6: Final answer
    x = 72,433.51

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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.