Home / 79,505.23-109,718.49-45,513.58

Finding the Fourth Proportional to 79,505.23, 109,718.49 and 45,513.58

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Solution

The fourth proportional to 79,505.23, 109,718.49 and 45,513.58 is: 62,809.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,505.23 : 109,718.49 = 45,513.58 : x
  2. Step 2: Convert to fraction form
    79,505.23/109,718.49 = 45,513.58/x
  3. Step 3: Cross multiply
    79,505.23x = 109,718.49 × 45,513.58
  4. Step 4: Simplify right side
    79,505.23x = 4,993,681,168.47
  5. Step 5: Solve for x
    x = 4,993,681,168.47/79,505.23
  6. Step 6: Final answer
    x = 62,809.47

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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.