Home / 79,313.84-109,473-53,863.28

Finding the Fourth Proportional to 79,313.84, 109,473 and 53,863.28

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Solution

The fourth proportional to 79,313.84, 109,473 and 53,863.28 is: 74,344.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,313.84 : 109,473 = 53,863.28 : x
  2. Step 2: Convert to fraction form
    79,313.84/109,473 = 53,863.28/x
  3. Step 3: Cross multiply
    79,313.84x = 109,473 × 53,863.28
  4. Step 4: Simplify right side
    79,313.84x = 5,896,574,851.44
  5. Step 5: Solve for x
    x = 5,896,574,851.44/79,313.84
  6. Step 6: Final answer
    x = 74,344.84

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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.